Kostić, Bojan

Link to this page

Authority KeyName Variants
4ef03272-5f47-493c-8c2c-7eb2bc92889f
  • Kostić, Bojan (7)
Projects

Author's Bibliography

Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer

Tančić, Pavle; Milošević, Maja; Spahić, Darko; Kostić, Bojan; Kremenović, Aleksandar; Poznanović-Spahić, Maja; Kovačević, Jovan

(Cambridge University Press, 2024)

TY  - JOUR
AU  - Tančić, Pavle
AU  - Milošević, Maja
AU  - Spahić, Darko
AU  - Kostić, Bojan
AU  - Kremenović, Aleksandar
AU  - Poznanović-Spahić, Maja
AU  - Kovačević, Jovan
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7538
AB  - Five celestine crystals are sampled from the (paleo)surface intervening between the late Miocene to Pleistocene basaltic sequences of the Jabal Eghei(Nuqay) volcanic province (southern Libya). The celestine specimens are characterized by applying the combination of the SEM-WDS, ICP/OES, XRPD, and IR methods. The celestine minerals are further analyzed for their color variations and minerogenetic framework. Three samples have greenish-blue-to-blue (480.4-482.5 nm), whereas the other two samples have blue-green color (cyan; 489.1-494.1 nm). The color purity ranges from 1.36-7.16. Their similarity of chemical content is fitting into the celestine near-end members, in which exclusively 1.6-4.1 at. % of Sr2+ content was substituted by Pb2+ (0.7-0.9 at. %), Ba2+ (0.5-0.7 at. %) and Ca2+ (0.2-0.8 at. %). The composition includes vacancies ranging from 1.0 to 1.9 at. % (observed only in three samples). The content of other chemical elements is minor. The resulting unit-cell parameters have the following ranges: a0=8.3578(9)-8.3705(6) Å; b0=5.3510(5)-5.3568(4) Å; c0=6.8683(7)-6.8767(2) Å and V0=307.17(5)-308.34(4) Å3. The XRPD and IR results are mainly in accordance with the SEM-WDS results, having a higher level of correlativity. However, the analysis exposed a few discrepancies yielding several possible interpretations. The illustrated discrepancies were primarily caused by a slight unit-cell axial anisotropy i.e., thermal expansion. In this manner, the results yield a new geothermometric tool that is based on the unit-cell axial anisotropy. The investigated Sr-bearing celestines were formed during a Miocene intraplate volcanism, basaltic magmas, and associated brines lifted by the structural conduits (normal faults crosscutting the Sirt basin). The Sr-bearing fluids were then poured into and over the faulted and fractured lagoon-type gypsum, anhydrite Eocene sediments. The celestine minerals were produced within a ~ 368-430K (~ 95-157 oC) temperature range. The celestine is formed at slightly elevated temperature and pressure conditions, close to the shallow subsurface environment (over 250 bars).
PB  - Cambridge University Press
T2  - Mineralogical Magazine
T1  - Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer
VL  - 88
IS  - 1
SP  - 1
EP  - 18
DO  - 10.1180/mgm.2023.88
ER  - 
@article{
author = "Tančić, Pavle and Milošević, Maja and Spahić, Darko and Kostić, Bojan and Kremenović, Aleksandar and Poznanović-Spahić, Maja and Kovačević, Jovan",
year = "2024",
abstract = "Five celestine crystals are sampled from the (paleo)surface intervening between the late Miocene to Pleistocene basaltic sequences of the Jabal Eghei(Nuqay) volcanic province (southern Libya). The celestine specimens are characterized by applying the combination of the SEM-WDS, ICP/OES, XRPD, and IR methods. The celestine minerals are further analyzed for their color variations and minerogenetic framework. Three samples have greenish-blue-to-blue (480.4-482.5 nm), whereas the other two samples have blue-green color (cyan; 489.1-494.1 nm). The color purity ranges from 1.36-7.16. Their similarity of chemical content is fitting into the celestine near-end members, in which exclusively 1.6-4.1 at. % of Sr2+ content was substituted by Pb2+ (0.7-0.9 at. %), Ba2+ (0.5-0.7 at. %) and Ca2+ (0.2-0.8 at. %). The composition includes vacancies ranging from 1.0 to 1.9 at. % (observed only in three samples). The content of other chemical elements is minor. The resulting unit-cell parameters have the following ranges: a0=8.3578(9)-8.3705(6) Å; b0=5.3510(5)-5.3568(4) Å; c0=6.8683(7)-6.8767(2) Å and V0=307.17(5)-308.34(4) Å3. The XRPD and IR results are mainly in accordance with the SEM-WDS results, having a higher level of correlativity. However, the analysis exposed a few discrepancies yielding several possible interpretations. The illustrated discrepancies were primarily caused by a slight unit-cell axial anisotropy i.e., thermal expansion. In this manner, the results yield a new geothermometric tool that is based on the unit-cell axial anisotropy. The investigated Sr-bearing celestines were formed during a Miocene intraplate volcanism, basaltic magmas, and associated brines lifted by the structural conduits (normal faults crosscutting the Sirt basin). The Sr-bearing fluids were then poured into and over the faulted and fractured lagoon-type gypsum, anhydrite Eocene sediments. The celestine minerals were produced within a ~ 368-430K (~ 95-157 oC) temperature range. The celestine is formed at slightly elevated temperature and pressure conditions, close to the shallow subsurface environment (over 250 bars).",
publisher = "Cambridge University Press",
journal = "Mineralogical Magazine",
title = "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer",
volume = "88",
number = "1",
pages = "1-18",
doi = "10.1180/mgm.2023.88"
}
Tančić, P., Milošević, M., Spahić, D., Kostić, B., Kremenović, A., Poznanović-Spahić, M.,& Kovačević, J.. (2024). Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer. in Mineralogical Magazine
Cambridge University Press., 88(1), 1-18.
https://doi.org/10.1180/mgm.2023.88
Tančić P, Milošević M, Spahić D, Kostić B, Kremenović A, Poznanović-Spahić M, Kovačević J. Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer. in Mineralogical Magazine. 2024;88(1):1-18.
doi:10.1180/mgm.2023.88 .
Tančić, Pavle, Milošević, Maja, Spahić, Darko, Kostić, Bojan, Kremenović, Aleksandar, Poznanović-Spahić, Maja, Kovačević, Jovan, "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer" in Mineralogical Magazine, 88, no. 1 (2024):1-18,
https://doi.org/10.1180/mgm.2023.88 . .
1

Characterisation, axial anisotropy, and formation conditions of celestine minerals from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southeastern edge of the Sirt Basin, southern Libya: Constraints on the mineralogical geothermometer – ERRATUM

Tančić, Pavle; Milošević, Maja; Spahić, Darko; Kostić, Bojan; Kremenović, Aleksandar; Poznanović-Spahić, Maja; Kovačević, Jovan

(Cambridge University Press, 2024)

TY  - JOUR
AU  - Tančić, Pavle
AU  - Milošević, Maja
AU  - Spahić, Darko
AU  - Kostić, Bojan
AU  - Kremenović, Aleksandar
AU  - Poznanović-Spahić, Maja
AU  - Kovačević, Jovan
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7539
AB  - An error was introduced during production in the section of text on p. 10 under the heading “(v)
The option that various structural variations within the samples could take place”, in paragraph
six.
The published text reads:
“For possibility (b), the major celestines with the disregarded gypsum or anhydrite phases, the
results in Supplementary Tables S10 and S16 demonstrate that there is a slightly different ratio
between various crystallographic axes, such as c0 < a0 <b0 (samples 1 and 4), a0 < c0 <b0
(samples 2 and 3) and a0 = c0 < b0 (sample 5).”
The text ‘possibility (b)’ should be changed to ‘possibility 2’, and hence the descriptor ‘the major
celestines with the disregarded gypsum or anhydrite phases’ should be removed.
The correct text is:
“For possibility (2), the results in Supplementary Tables S10 and S16 demonstrate that there is a
slightly different ratio between various crystallographic axes, such as c0 < a0 <b0 (samples 1 and
4), a0 < c0 <b0 (samples 2 and 3) and a0 = c0 < b0 (sample 5).”
PB  - Cambridge University Press
T2  - Mineralogical Magazine
T1  - Characterisation, axial anisotropy, and formation conditions of celestine minerals from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southeastern edge of the Sirt Basin, southern Libya: Constraints on the mineralogical geothermometer – ERRATUM
SP  - 1
EP  - 1
DO  - 10.1180/mgm.2024.12
ER  - 
@article{
author = "Tančić, Pavle and Milošević, Maja and Spahić, Darko and Kostić, Bojan and Kremenović, Aleksandar and Poznanović-Spahić, Maja and Kovačević, Jovan",
year = "2024",
abstract = "An error was introduced during production in the section of text on p. 10 under the heading “(v)
The option that various structural variations within the samples could take place”, in paragraph
six.
The published text reads:
“For possibility (b), the major celestines with the disregarded gypsum or anhydrite phases, the
results in Supplementary Tables S10 and S16 demonstrate that there is a slightly different ratio
between various crystallographic axes, such as c0 < a0 <b0 (samples 1 and 4), a0 < c0 <b0
(samples 2 and 3) and a0 = c0 < b0 (sample 5).”
The text ‘possibility (b)’ should be changed to ‘possibility 2’, and hence the descriptor ‘the major
celestines with the disregarded gypsum or anhydrite phases’ should be removed.
The correct text is:
“For possibility (2), the results in Supplementary Tables S10 and S16 demonstrate that there is a
slightly different ratio between various crystallographic axes, such as c0 < a0 <b0 (samples 1 and
4), a0 < c0 <b0 (samples 2 and 3) and a0 = c0 < b0 (sample 5).”",
publisher = "Cambridge University Press",
journal = "Mineralogical Magazine",
title = "Characterisation, axial anisotropy, and formation conditions of celestine minerals from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southeastern edge of the Sirt Basin, southern Libya: Constraints on the mineralogical geothermometer – ERRATUM",
pages = "1-1",
doi = "10.1180/mgm.2024.12"
}
Tančić, P., Milošević, M., Spahić, D., Kostić, B., Kremenović, A., Poznanović-Spahić, M.,& Kovačević, J.. (2024). Characterisation, axial anisotropy, and formation conditions of celestine minerals from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southeastern edge of the Sirt Basin, southern Libya: Constraints on the mineralogical geothermometer – ERRATUM. in Mineralogical Magazine
Cambridge University Press., 1-1.
https://doi.org/10.1180/mgm.2024.12
Tančić P, Milošević M, Spahić D, Kostić B, Kremenović A, Poznanović-Spahić M, Kovačević J. Characterisation, axial anisotropy, and formation conditions of celestine minerals from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southeastern edge of the Sirt Basin, southern Libya: Constraints on the mineralogical geothermometer – ERRATUM. in Mineralogical Magazine. 2024;:1-1.
doi:10.1180/mgm.2024.12 .
Tančić, Pavle, Milošević, Maja, Spahić, Darko, Kostić, Bojan, Kremenović, Aleksandar, Poznanović-Spahić, Maja, Kovačević, Jovan, "Characterisation, axial anisotropy, and formation conditions of celestine minerals from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southeastern edge of the Sirt Basin, southern Libya: Constraints on the mineralogical geothermometer – ERRATUM" in Mineralogical Magazine (2024):1-1,
https://doi.org/10.1180/mgm.2024.12 . .

Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer

Tančić, Pavle; Milošević, Maja; Spahić, Darko; Kostić, Bojan; Kremenović, Aleksandar; Poznanović-Spahić, Maja; Kovačević, Jovan

(Cambridge University Press, 2024)

TY  - JOUR
AU  - Tančić, Pavle
AU  - Milošević, Maja
AU  - Spahić, Darko
AU  - Kostić, Bojan
AU  - Kremenović, Aleksandar
AU  - Poznanović-Spahić, Maja
AU  - Kovačević, Jovan
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6913
AB  - Five celestine crystals are sampled from the (paleo)surface intervening between the late Miocene to Pleistocene basaltic sequences of the Jabal Eghei(Nuqay) volcanic province (southern Libya). The celestine specimens are characterized by applying the combination of the SEM-WDS, ICP/OES, XRPD, and IR methods. The celestine minerals are further analyzed for their color variations and minerogenetic framework. Three samples have greenish-blue-to-blue (480.4-482.5 nm), whereas the other two samples have blue-green color (cyan; 489.1-494.1 nm). The color purity ranges from 1.36-7.16. Their similarity of chemical content is fitting into the celestine near-end members, in which exclusively 1.6-4.1 at. % of Sr2+ content was substituted by Pb2+ (0.7-0.9 at. %), Ba2+ (0.5-0.7 at. %) and Ca2+ (0.2-0.8 at. %). The composition includes vacancies ranging from 1.0 to 1.9 at. % (observed only in three samples). The content of other chemical elements is minor. The resulting unit-cell parameters have the following ranges: a0=8.3578(9)-8.3705(6) Å; b0=5.3510(5)-5.3568(4) Å; c0=6.8683(7)-6.8767(2) Å and V0=307.17(5)-308.34(4) Å3. The XRPD and IR results are mainly in accordance with the SEM-WDS results, having a higher level of correlativity. However, the analysis exposed a few discrepancies yielding several possible interpretations. The illustrated discrepancies were primarily caused by a slight unit-cell axial anisotropy i.e., thermal expansion. In this manner, the results yield a new geothermometric tool that is based on the unit-cell axial anisotropy. The investigated Sr-bearing celestines were formed during a Miocene intraplate volcanism, basaltic magmas, and associated brines lifted by the structural conduits (normal faults crosscutting the Sirt basin). The Sr-bearing fluids were then poured into and over the faulted and fractured lagoon-type gypsum, anhydrite Eocene sediments. The celestine minerals were produced within a ~ 368-430K (~ 95-157 oC) temperature range. The celestine is formed at slightly elevated temperature and pressure conditions, close to the shallow subsurface environment (over 250 bars).
PB  - Cambridge University Press
T2  - Mineralogical Magazine
T1  - Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer
VL  - 88
IS  - 1
SP  - 1
EP  - 18
DO  - 10.1180/mgm.2023.88
ER  - 
@article{
author = "Tančić, Pavle and Milošević, Maja and Spahić, Darko and Kostić, Bojan and Kremenović, Aleksandar and Poznanović-Spahić, Maja and Kovačević, Jovan",
year = "2024",
abstract = "Five celestine crystals are sampled from the (paleo)surface intervening between the late Miocene to Pleistocene basaltic sequences of the Jabal Eghei(Nuqay) volcanic province (southern Libya). The celestine specimens are characterized by applying the combination of the SEM-WDS, ICP/OES, XRPD, and IR methods. The celestine minerals are further analyzed for their color variations and minerogenetic framework. Three samples have greenish-blue-to-blue (480.4-482.5 nm), whereas the other two samples have blue-green color (cyan; 489.1-494.1 nm). The color purity ranges from 1.36-7.16. Their similarity of chemical content is fitting into the celestine near-end members, in which exclusively 1.6-4.1 at. % of Sr2+ content was substituted by Pb2+ (0.7-0.9 at. %), Ba2+ (0.5-0.7 at. %) and Ca2+ (0.2-0.8 at. %). The composition includes vacancies ranging from 1.0 to 1.9 at. % (observed only in three samples). The content of other chemical elements is minor. The resulting unit-cell parameters have the following ranges: a0=8.3578(9)-8.3705(6) Å; b0=5.3510(5)-5.3568(4) Å; c0=6.8683(7)-6.8767(2) Å and V0=307.17(5)-308.34(4) Å3. The XRPD and IR results are mainly in accordance with the SEM-WDS results, having a higher level of correlativity. However, the analysis exposed a few discrepancies yielding several possible interpretations. The illustrated discrepancies were primarily caused by a slight unit-cell axial anisotropy i.e., thermal expansion. In this manner, the results yield a new geothermometric tool that is based on the unit-cell axial anisotropy. The investigated Sr-bearing celestines were formed during a Miocene intraplate volcanism, basaltic magmas, and associated brines lifted by the structural conduits (normal faults crosscutting the Sirt basin). The Sr-bearing fluids were then poured into and over the faulted and fractured lagoon-type gypsum, anhydrite Eocene sediments. The celestine minerals were produced within a ~ 368-430K (~ 95-157 oC) temperature range. The celestine is formed at slightly elevated temperature and pressure conditions, close to the shallow subsurface environment (over 250 bars).",
publisher = "Cambridge University Press",
journal = "Mineralogical Magazine",
title = "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer",
volume = "88",
number = "1",
pages = "1-18",
doi = "10.1180/mgm.2023.88"
}
Tančić, P., Milošević, M., Spahić, D., Kostić, B., Kremenović, A., Poznanović-Spahić, M.,& Kovačević, J.. (2024). Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer. in Mineralogical Magazine
Cambridge University Press., 88(1), 1-18.
https://doi.org/10.1180/mgm.2023.88
Tančić P, Milošević M, Spahić D, Kostić B, Kremenović A, Poznanović-Spahić M, Kovačević J. Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer. in Mineralogical Magazine. 2024;88(1):1-18.
doi:10.1180/mgm.2023.88 .
Tančić, Pavle, Milošević, Maja, Spahić, Darko, Kostić, Bojan, Kremenović, Aleksandar, Poznanović-Spahić, Maja, Kovačević, Jovan, "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer" in Mineralogical Magazine, 88, no. 1 (2024):1-18,
https://doi.org/10.1180/mgm.2023.88 . .
1

Supplementary Materials for: "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer"

Tančić, Pavle; Milošević, Maja; Spahić, Darko; Kostić, Bojan; Kremenović, Aleksandar; Poznanović-Spahić, Maja; Kovačević, Jovan

(Cambridge University Press, 2023)

TY  - DATA
AU  - Tančić, Pavle
AU  - Milošević, Maja
AU  - Spahić, Darko
AU  - Kostić, Bojan
AU  - Kremenović, Aleksandar
AU  - Poznanović-Spahić, Maja
AU  - Kovačević, Jovan
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7147
AB  - Figure S1. a The investigated area within the circum-Mediterranean realm; b Geological Mapping campaign of central and southern Libya (marked with green color); c The wider area of the Al Haruj and Jabal Eghei Volcanic Provinces; d Jabal Eghei Volcanic Province; and e The surface-exposed basalts as the result of the three Middle Miocene to Pliocene volcanic events (according to Radivojević et al. 2015). The spots of the celestine sampling locations are marked with the “×” symbol, collected from the area of the sheet NF 34-1, Geological Map of Libya, scale 1:250,000 (marked with red color).
Figure S2. SEM photos (column I, left) and sum spectrums (column II, right) of the analyzed 1-5 samples. 
Figure S3. The observed (column I, left) XRPD patterns of the 1-5 samples. The Le Bail (1988) profile fitting (column II, right) of the XRPD patterns of the 1-5 samples. The observed spectra (red dotted line), fitted spectra (black solid line), difference plot (blue solid line) and Bragg peak positions (green tick marks), are shown as well. 
Table S1. Observed interplanar spacings (dobs, in Å) and relative intensity ratios-RIR (Iobs, in %) of the studied samples; compared to the reference ICDD-PDF's (ICDD-PDF: International Centre for Diffraction Data-Powder Diffraction File) 89-0953 and 05-0593 data standards. 
Figure S4. Comparative presentation of the reflections with following Miller's hkl indices: (a) 002; (b) 210; (c) 102; (d) 211; (e) 112 (left) and 020 (right); (f) 122 & 113 (left) and 203 & 401 (right); (g) 004; (h) 323; (i) 040 (left) and 431 (right); and (j) 006. 
Figure S5. Magnified 24.5-30.5o (column I, left) and 31-90o (column II, right) 2θ angle ranges of the Le Bail (1988) profile fittings (Figure S3, column II). 
Table S2. Selected profile parameters and reliability factors refined from the Le Bail (1988) profile fitting method. 
Figure S6. Linear (column I, left) and polynomial [column II, right; C(1)] variations for 1-5 samples of: (a & d) axis a0 (in Å) by axis c0 (in Å); (b & e) axis a0 (in Å) by volume V0 (in Å3); and (c & f) axis c0 (in Å) by volume V0 (in Å3). Marks “+” denote celestine positions (ICDD-PDF: 89-0953). 
Figure S7. Linear (column I, left) and polynomial [column II, right; C(2)] variations of the axis b0 (in Å) for 1-5 samples by: (a & d) axis a0 (in Å); (b & e) axis c0 (in Å); and (c & f) volume V0 (in Å3). Marks “+” denote celestine positions (ICDD-PDF: 89-0953). 
Figure S8. Positions of the polynomial variations of the studied samples (Figures S6 and S7) in regard to the celestine, anglesite and barite standards [ICDD-PDF's: 89-0953 (marked as “+”), 36-1461 (marked as “☼”) and 24-1035 (marked as “×”), respectively]: (a) axis b0 (in Å) by axis a0 (in Å); (b) axis a0 (in Å) by axis c0 (in Å); (c) axis b0 (in Å) by axis c0 (in Å); (d) axis a0 (in Å) by volume V0 (in Å3); (e) axis b0 (in Å) by volume V0 (in Å3); and (f) axis c0 (in Å) by volume V0 (in Å3). Celestine-anglesite linear joins were marked with dotted lines, whereas celestine-barite linear joins were marked with interrupted lines.  
Table S3. Calculated differences (in %) between the UCPs for various solid-solutions series. 
Figure S9. Infrared spectra of the studied samples.
Figure S10. Chromatic diagram of the studied samples. 
Figure S11. Linear (column I, left) and polynomial [column II, right; C(3)] variations of the calculated ionic radiuses (in Å; Table 2) for 1-5 samples by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). Marks “+” and “×” denote celestine positions (ICDD-PDF's: 89-0953 and 05-0593, respectively). 
Table S4. Correlations of the different studied variations (see Discussion, for details).
Table S5. Determined apfu’s (in at. %) at the 2 (ΣM+S) ions basis from the determined WDS analyses (Table 1). 
Table S6. Calculated theoretical ionic radiuses (in Å) of the M cations, and calculated occupancies of the twelve-coordination site (in at. %) at basis of the determined apfu’s (Table S5). 
Figure S12. Linear (column I, left) and polynomial [column II, right; C(4)] variations of the calculated ionic radiuses (in Å; Table S6) for 1-5 samples by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Table S7. Recalculated (calc1-3) WDS analyses of the 1-5 studied samples (in wt. %). Atoms per formula units (apfu; in at. %) were calculated at 4 oxygen anions basis. 
Table S8. Recalculated (calc1-3) theoretical ionic radiuses (in Å) of the M cations, and calculated occupancies of the twelve-coordination site (in at. %) at basis of the recalculated (calc1-3) WDS analyses (Table S7). 
Figure S13. Linear (column I, left) and polynomial [column II, right; C(5)] variations of the calculated ionic radiuses (in Å) for 1-5 samples without calculated anhydrite or gypsum contents (Table S8; calc1,2) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). Marks “+” denote celestine positions (ICDD-PDF: 89-0953). 
Figure S14. Linear (column I, left) and polynomial [column II, right; C(6)] variations of the calculated ionic radiuses (in Å) for 1-5 samples without calculated anhydrite, gypsum and other minerals with the X component contents (Table S8; calc3) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). Marks “+” denote celestine positions (ICDD-PDF: 89-0953). 
Table S9. Recalculated theoretical ionic radiuses (in Å) of the M+S6+ ions and calculated occupancies of the twelve-coordination site within two possible options for celestines: as monomineral („mono“; Table 2), and without minor anhydrite („A“) or gypsum („G“) contents (Table S8; calc1,2). 
Figure S15. Linear (column I, left) and polynomial [column II, right; C(7)] variations of the recalculated ionic radiuses (in Å) for 1-5 samples treated as monomineral celestines (Table S9; „mono“) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). Marks “+” and “×” denote celestine positions (ICDD-PDF's: 89-0953 and 05-0593, respectively). 
Figure S16. Linear (column I, left) and polynomial [column II, right; C(8)] variations of the recalculated ionic radiuses (in Å) for 1-5 samples treated as major celestines with neglected anhydrite („A“) or gypsum („G“) contents (Table S9) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). Marks “+” and “×” denote celestine positions (ICDD-PDF's: 89-0953 and 05-0593, respectively). 
Table S10. Determined (marked as „det“; Table 5) and presumed (marked as „pre“) UCPs of the studied samples (as monomineral, Table 1); and without minor anhydrite („A“) and gypsum („G“) contents (Table S7). Differences (Δ) and ratios between these are also presented. 
Figure S17. Linear (column I, left) and polynomial [column II, right; C(9)] variations of the calculated ionic radiuses (in Å; Table 2) for monomineral 1-5 samples (Table S10) by: (a & e) ratio of axis a0; (b & f) ratio of axis b0; (c & g) ratio of axis c0; and (d & h) ratio of volume V0. 
Figure S18. Linear (column I, left) and polynomial [column II, right; C(10)] variations of the calculated ionic radiuses (in Å; Table S8) for 1-5 samples without calculated Ca from anhydrite or gypsum contents (Table S10) by: (a & e) ratio of axis a0; (b & f) ratio of axis b0; (c & g) ratio of axis c0; and (d & h) ratio of volume V0. 
Figure S19. Linear (column I, left) and polynomial [column II, right; C(11)] variations of the presumed (Table S10) by determined (Table 5) UCPs: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Table S11. UCPs and average <M-O> distances (in Å) of the selected celestines. 
Table S12. Recalculated apfu’s (in at. %) from Table 1. 
Table S13. Recalculated theoretical ionic radiuses (in Å) of the M cations, and occupancies of the twelve-coordination site (in at. %) from Table 2. 
Table S14. Recalculated apfu’s (in at. %) from Table S7 (calc1,2). 
Table S15. Recalculated theoretical ionic radiuses (in Å) of the M cations, and occupancies of the twelve-coordination site (in at. %) from Table S8.
Figure S20. Linear (column I, left) and polynomial [column II, right; C(12)] variations of the recalculated ionic radiuses (in Å) for 1-5 samples treated as monomineral celestines (Table S13) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Figure S21. Linear (column I, left) and polynomial [column II, right; C(13)] variations of the recalculated ionic radiuses (in Å) for 1-5 samples treated as major celestines with neglected anhydrite or gypsum contents (Table S15) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Table S16. Determined (marked as „obs“; Table 5) and presumed (marked as „calc“) UCPs of the studied samples as monomineral celestines (Table S12). Differences (Δ) and ratios between these are also presented. 
Figure S22. Linear (column I, left) and polynomial [column II, right; C(14)] variations of the calculated (Table S16; marked as „calc“) by observed (Table 5; marked as „obs“) UCPs: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Table S17. Recalculated variations of temperature dependence by UCPs for the Clt98Ang02, Clt96Ang04 and Clt94Ang06 celestine-anglesite solid-solution series, at the ambient pressure conditions. 
Table S18. Recalculated variations of temperature dependence by UCPs for the Clt99Brt01, Clt98Brt02 and Clt97Brt03 celestine-barite solid-solution series, at the ambient pressure conditions. 
Table S19. Relative UCPs of celestine, anglesite and barite, calculated from the ratio of the data at 320K* and 520K (Tables S17 and S18). 
Figure S23. Five possible different variations (plotted from Figure 3h) of: 1. volume increase by a temperature increase, including the Brt contents increase; 2. volume increase by a constant temperature, including the Brt contents increase; 3. volume increase by a temperature decrease, including the Brt contents increase; 4. constant volume by a temperature increase, including the Brt contents decrease; and 5. volume increase by a temperature increase, having a constant Brt content. 
Figure S24. Linear (column I, left) and polynomial [column II, right; C(15)] variations of the temperature (in K) for 1-5 samples (Tables 5 and 8) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Table S20. Estimated UCPs of the studied samples at room temperature (23 oC) and ambient pressure conditions, at basis of the extrapolated data presented in Tables S17 and S18; Table 8 and Figure 3. 
Figure S25. Linear (column I, left) and polynomial [column II, right; C(16)] variations of the average temperature (in K) for 1-5 samples (Table 8) by ratio (Table 9) of: (a & e) axis a0; (b & f) axis b0; (c & g) axis c0; and (d & h) volume V0.
PB  - Cambridge University Press
T1  - Supplementary Materials for: "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer"
UR  - https://hdl.handle.net/21.15107/rcub_cer_7147
ER  - 
@misc{
author = "Tančić, Pavle and Milošević, Maja and Spahić, Darko and Kostić, Bojan and Kremenović, Aleksandar and Poznanović-Spahić, Maja and Kovačević, Jovan",
year = "2023",
abstract = "Figure S1. a The investigated area within the circum-Mediterranean realm; b Geological Mapping campaign of central and southern Libya (marked with green color); c The wider area of the Al Haruj and Jabal Eghei Volcanic Provinces; d Jabal Eghei Volcanic Province; and e The surface-exposed basalts as the result of the three Middle Miocene to Pliocene volcanic events (according to Radivojević et al. 2015). The spots of the celestine sampling locations are marked with the “×” symbol, collected from the area of the sheet NF 34-1, Geological Map of Libya, scale 1:250,000 (marked with red color).
Figure S2. SEM photos (column I, left) and sum spectrums (column II, right) of the analyzed 1-5 samples. 
Figure S3. The observed (column I, left) XRPD patterns of the 1-5 samples. The Le Bail (1988) profile fitting (column II, right) of the XRPD patterns of the 1-5 samples. The observed spectra (red dotted line), fitted spectra (black solid line), difference plot (blue solid line) and Bragg peak positions (green tick marks), are shown as well. 
Table S1. Observed interplanar spacings (dobs, in Å) and relative intensity ratios-RIR (Iobs, in %) of the studied samples; compared to the reference ICDD-PDF's (ICDD-PDF: International Centre for Diffraction Data-Powder Diffraction File) 89-0953 and 05-0593 data standards. 
Figure S4. Comparative presentation of the reflections with following Miller's hkl indices: (a) 002; (b) 210; (c) 102; (d) 211; (e) 112 (left) and 020 (right); (f) 122 & 113 (left) and 203 & 401 (right); (g) 004; (h) 323; (i) 040 (left) and 431 (right); and (j) 006. 
Figure S5. Magnified 24.5-30.5o (column I, left) and 31-90o (column II, right) 2θ angle ranges of the Le Bail (1988) profile fittings (Figure S3, column II). 
Table S2. Selected profile parameters and reliability factors refined from the Le Bail (1988) profile fitting method. 
Figure S6. Linear (column I, left) and polynomial [column II, right; C(1)] variations for 1-5 samples of: (a & d) axis a0 (in Å) by axis c0 (in Å); (b & e) axis a0 (in Å) by volume V0 (in Å3); and (c & f) axis c0 (in Å) by volume V0 (in Å3). Marks “+” denote celestine positions (ICDD-PDF: 89-0953). 
Figure S7. Linear (column I, left) and polynomial [column II, right; C(2)] variations of the axis b0 (in Å) for 1-5 samples by: (a & d) axis a0 (in Å); (b & e) axis c0 (in Å); and (c & f) volume V0 (in Å3). Marks “+” denote celestine positions (ICDD-PDF: 89-0953). 
Figure S8. Positions of the polynomial variations of the studied samples (Figures S6 and S7) in regard to the celestine, anglesite and barite standards [ICDD-PDF's: 89-0953 (marked as “+”), 36-1461 (marked as “☼”) and 24-1035 (marked as “×”), respectively]: (a) axis b0 (in Å) by axis a0 (in Å); (b) axis a0 (in Å) by axis c0 (in Å); (c) axis b0 (in Å) by axis c0 (in Å); (d) axis a0 (in Å) by volume V0 (in Å3); (e) axis b0 (in Å) by volume V0 (in Å3); and (f) axis c0 (in Å) by volume V0 (in Å3). Celestine-anglesite linear joins were marked with dotted lines, whereas celestine-barite linear joins were marked with interrupted lines.  
Table S3. Calculated differences (in %) between the UCPs for various solid-solutions series. 
Figure S9. Infrared spectra of the studied samples.
Figure S10. Chromatic diagram of the studied samples. 
Figure S11. Linear (column I, left) and polynomial [column II, right; C(3)] variations of the calculated ionic radiuses (in Å; Table 2) for 1-5 samples by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). Marks “+” and “×” denote celestine positions (ICDD-PDF's: 89-0953 and 05-0593, respectively). 
Table S4. Correlations of the different studied variations (see Discussion, for details).
Table S5. Determined apfu’s (in at. %) at the 2 (ΣM+S) ions basis from the determined WDS analyses (Table 1). 
Table S6. Calculated theoretical ionic radiuses (in Å) of the M cations, and calculated occupancies of the twelve-coordination site (in at. %) at basis of the determined apfu’s (Table S5). 
Figure S12. Linear (column I, left) and polynomial [column II, right; C(4)] variations of the calculated ionic radiuses (in Å; Table S6) for 1-5 samples by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Table S7. Recalculated (calc1-3) WDS analyses of the 1-5 studied samples (in wt. %). Atoms per formula units (apfu; in at. %) were calculated at 4 oxygen anions basis. 
Table S8. Recalculated (calc1-3) theoretical ionic radiuses (in Å) of the M cations, and calculated occupancies of the twelve-coordination site (in at. %) at basis of the recalculated (calc1-3) WDS analyses (Table S7). 
Figure S13. Linear (column I, left) and polynomial [column II, right; C(5)] variations of the calculated ionic radiuses (in Å) for 1-5 samples without calculated anhydrite or gypsum contents (Table S8; calc1,2) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). Marks “+” denote celestine positions (ICDD-PDF: 89-0953). 
Figure S14. Linear (column I, left) and polynomial [column II, right; C(6)] variations of the calculated ionic radiuses (in Å) for 1-5 samples without calculated anhydrite, gypsum and other minerals with the X component contents (Table S8; calc3) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). Marks “+” denote celestine positions (ICDD-PDF: 89-0953). 
Table S9. Recalculated theoretical ionic radiuses (in Å) of the M+S6+ ions and calculated occupancies of the twelve-coordination site within two possible options for celestines: as monomineral („mono“; Table 2), and without minor anhydrite („A“) or gypsum („G“) contents (Table S8; calc1,2). 
Figure S15. Linear (column I, left) and polynomial [column II, right; C(7)] variations of the recalculated ionic radiuses (in Å) for 1-5 samples treated as monomineral celestines (Table S9; „mono“) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). Marks “+” and “×” denote celestine positions (ICDD-PDF's: 89-0953 and 05-0593, respectively). 
Figure S16. Linear (column I, left) and polynomial [column II, right; C(8)] variations of the recalculated ionic radiuses (in Å) for 1-5 samples treated as major celestines with neglected anhydrite („A“) or gypsum („G“) contents (Table S9) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). Marks “+” and “×” denote celestine positions (ICDD-PDF's: 89-0953 and 05-0593, respectively). 
Table S10. Determined (marked as „det“; Table 5) and presumed (marked as „pre“) UCPs of the studied samples (as monomineral, Table 1); and without minor anhydrite („A“) and gypsum („G“) contents (Table S7). Differences (Δ) and ratios between these are also presented. 
Figure S17. Linear (column I, left) and polynomial [column II, right; C(9)] variations of the calculated ionic radiuses (in Å; Table 2) for monomineral 1-5 samples (Table S10) by: (a & e) ratio of axis a0; (b & f) ratio of axis b0; (c & g) ratio of axis c0; and (d & h) ratio of volume V0. 
Figure S18. Linear (column I, left) and polynomial [column II, right; C(10)] variations of the calculated ionic radiuses (in Å; Table S8) for 1-5 samples without calculated Ca from anhydrite or gypsum contents (Table S10) by: (a & e) ratio of axis a0; (b & f) ratio of axis b0; (c & g) ratio of axis c0; and (d & h) ratio of volume V0. 
Figure S19. Linear (column I, left) and polynomial [column II, right; C(11)] variations of the presumed (Table S10) by determined (Table 5) UCPs: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Table S11. UCPs and average <M-O> distances (in Å) of the selected celestines. 
Table S12. Recalculated apfu’s (in at. %) from Table 1. 
Table S13. Recalculated theoretical ionic radiuses (in Å) of the M cations, and occupancies of the twelve-coordination site (in at. %) from Table 2. 
Table S14. Recalculated apfu’s (in at. %) from Table S7 (calc1,2). 
Table S15. Recalculated theoretical ionic radiuses (in Å) of the M cations, and occupancies of the twelve-coordination site (in at. %) from Table S8.
Figure S20. Linear (column I, left) and polynomial [column II, right; C(12)] variations of the recalculated ionic radiuses (in Å) for 1-5 samples treated as monomineral celestines (Table S13) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Figure S21. Linear (column I, left) and polynomial [column II, right; C(13)] variations of the recalculated ionic radiuses (in Å) for 1-5 samples treated as major celestines with neglected anhydrite or gypsum contents (Table S15) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Table S16. Determined (marked as „obs“; Table 5) and presumed (marked as „calc“) UCPs of the studied samples as monomineral celestines (Table S12). Differences (Δ) and ratios between these are also presented. 
Figure S22. Linear (column I, left) and polynomial [column II, right; C(14)] variations of the calculated (Table S16; marked as „calc“) by observed (Table 5; marked as „obs“) UCPs: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Table S17. Recalculated variations of temperature dependence by UCPs for the Clt98Ang02, Clt96Ang04 and Clt94Ang06 celestine-anglesite solid-solution series, at the ambient pressure conditions. 
Table S18. Recalculated variations of temperature dependence by UCPs for the Clt99Brt01, Clt98Brt02 and Clt97Brt03 celestine-barite solid-solution series, at the ambient pressure conditions. 
Table S19. Relative UCPs of celestine, anglesite and barite, calculated from the ratio of the data at 320K* and 520K (Tables S17 and S18). 
Figure S23. Five possible different variations (plotted from Figure 3h) of: 1. volume increase by a temperature increase, including the Brt contents increase; 2. volume increase by a constant temperature, including the Brt contents increase; 3. volume increase by a temperature decrease, including the Brt contents increase; 4. constant volume by a temperature increase, including the Brt contents decrease; and 5. volume increase by a temperature increase, having a constant Brt content. 
Figure S24. Linear (column I, left) and polynomial [column II, right; C(15)] variations of the temperature (in K) for 1-5 samples (Tables 5 and 8) by: (a & e) axis a0 (in Å); (b & f) axis b0 (in Å); (c & g) axis c0 (in Å); and (d & h) volume V0 (in Å3). 
Table S20. Estimated UCPs of the studied samples at room temperature (23 oC) and ambient pressure conditions, at basis of the extrapolated data presented in Tables S17 and S18; Table 8 and Figure 3. 
Figure S25. Linear (column I, left) and polynomial [column II, right; C(16)] variations of the average temperature (in K) for 1-5 samples (Table 8) by ratio (Table 9) of: (a & e) axis a0; (b & f) axis b0; (c & g) axis c0; and (d & h) volume V0.",
publisher = "Cambridge University Press",
title = "Supplementary Materials for: "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer"",
url = "https://hdl.handle.net/21.15107/rcub_cer_7147"
}
Tančić, P., Milošević, M., Spahić, D., Kostić, B., Kremenović, A., Poznanović-Spahić, M.,& Kovačević, J.. (2023). Supplementary Materials for: "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer". 
Cambridge University Press..
https://hdl.handle.net/21.15107/rcub_cer_7147
Tančić P, Milošević M, Spahić D, Kostić B, Kremenović A, Poznanović-Spahić M, Kovačević J. Supplementary Materials for: "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer". 2023;.
https://hdl.handle.net/21.15107/rcub_cer_7147 .
Tančić, Pavle, Milošević, Maja, Spahić, Darko, Kostić, Bojan, Kremenović, Aleksandar, Poznanović-Spahić, Maja, Kovačević, Jovan, "Supplementary Materials for: "Characterization, axial anisotropy and formation conditions of celestine from the Jabal Eghei (Nuqay) late Neogene – Pleistocene volcanic province, southern Libya: Constraints on the mineralogical geothermometer"" (2023),
https://hdl.handle.net/21.15107/rcub_cer_7147 .

Anisotropic grossular-andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

Kostić, Bojan; Srećković-Batoćanin, Danica; Filipov, Petyo; Tančić, Pavle; Sokol, Kristijan

(Earth Science Institute of the Slovak Academy of Sciences, 2021)

TY  - JOUR
AU  - Kostić, Bojan
AU  - Srećković-Batoćanin, Danica
AU  - Filipov, Petyo
AU  - Tančić, Pavle
AU  - Sokol, Kristijan
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5894
AB  - This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern without any significant enrichment or depletion of REE, except higher amounts of trace elements, such as U, Th and Zr. Presence of sulphide minerals indicates reduction conditions and Eu divalent state. Different REE behaviour is conditioned by Eu2+ in reduction conditions. The observed variations in optical features and garnet chemistry are the results of their two-stage evolution. The first stage and period of garnet growth is probably buffered by mineral dissolution and reactions in the country rock. The second stage is related to hydrothermal activity when W and Fe were brought into the system probably by a boiling process in the volcanic event in the late Oligocene 23.9 Ma.
PB  - Earth Science Institute of the Slovak Academy of Sciences
T2  - Geologica Carpathica
T1  - Anisotropic grossular-andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia
VL  - 72
IS  - 1
SP  - 17
EP  - 25
DO  - 10.31577/GeolCarp.72.1.2
ER  - 
@article{
author = "Kostić, Bojan and Srećković-Batoćanin, Danica and Filipov, Petyo and Tančić, Pavle and Sokol, Kristijan",
year = "2021",
abstract = "This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern without any significant enrichment or depletion of REE, except higher amounts of trace elements, such as U, Th and Zr. Presence of sulphide minerals indicates reduction conditions and Eu divalent state. Different REE behaviour is conditioned by Eu2+ in reduction conditions. The observed variations in optical features and garnet chemistry are the results of their two-stage evolution. The first stage and period of garnet growth is probably buffered by mineral dissolution and reactions in the country rock. The second stage is related to hydrothermal activity when W and Fe were brought into the system probably by a boiling process in the volcanic event in the late Oligocene 23.9 Ma.",
publisher = "Earth Science Institute of the Slovak Academy of Sciences",
journal = "Geologica Carpathica",
title = "Anisotropic grossular-andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia",
volume = "72",
number = "1",
pages = "17-25",
doi = "10.31577/GeolCarp.72.1.2"
}
Kostić, B., Srećković-Batoćanin, D., Filipov, P., Tančić, P.,& Sokol, K.. (2021). Anisotropic grossular-andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia. in Geologica Carpathica
Earth Science Institute of the Slovak Academy of Sciences., 72(1), 17-25.
https://doi.org/10.31577/GeolCarp.72.1.2
Kostić B, Srećković-Batoćanin D, Filipov P, Tančić P, Sokol K. Anisotropic grossular-andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia. in Geologica Carpathica. 2021;72(1):17-25.
doi:10.31577/GeolCarp.72.1.2 .
Kostić, Bojan, Srećković-Batoćanin, Danica, Filipov, Petyo, Tančić, Pavle, Sokol, Kristijan, "Anisotropic grossular-andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia" in Geologica Carpathica, 72, no. 1 (2021):17-25,
https://doi.org/10.31577/GeolCarp.72.1.2 . .
3
3

SEM-EDS and AFM Study of a Novel Magnetic Polymer/Bentonite Nanocomposite

Marković, Bojana; Stefanović, Ivan; Džunuzović, Jasna; Randjelović, Danijela; Kostić, Bojan; Nastasović, Aleksandra

(Serbian Academy of Sciences and Arts, 2018)

TY  - CONF
AU  - Marković, Bojana
AU  - Stefanović, Ivan
AU  - Džunuzović, Jasna
AU  - Randjelović, Danijela
AU  - Kostić, Bojan
AU  - Nastasović, Aleksandra
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6162
AB  - Magnetic polymer microspheres consisting of a polymer and inorganic magnetic nanoparticles have been successfully used for separation of toxic and radioactive pollutants. Bentonite as well has been proved as an excellent adsorbent for heavy metals and organic pollutants removal from wastewaters. In order to combine favorable characteristics of magnetite nanoparticles (easy separation using magnetic field), bentonite (large surface area, high chemical and mechanical stability, low-cost and easily available) and macroporous copolymer (selectivity, possibility of 
additional functionalization, high sorption rate and capacity, recycling capability) a novel magnetic polymer/bentonite nanocomposite was synthesized.
PB  - Serbian Academy of Sciences and Arts
PB  - Faculty of Technology and Metallurgy,  University of Belgrade
C3  - Program and Book of abstracts - First International Conference on Electron Microscopy of Nanostructures ELMINA2018, August 27-29, 2018, BRectorate of the University of Belgrade, Belgrade, Serbia
T1  - SEM-EDS and AFM Study of a Novel Magnetic Polymer/Bentonite Nanocomposite
SP  - 207
EP  - 209
UR  - https://hdl.handle.net/21.15107/rcub_cer_6162
ER  - 
@conference{
author = "Marković, Bojana and Stefanović, Ivan and Džunuzović, Jasna and Randjelović, Danijela and Kostić, Bojan and Nastasović, Aleksandra",
year = "2018",
abstract = "Magnetic polymer microspheres consisting of a polymer and inorganic magnetic nanoparticles have been successfully used for separation of toxic and radioactive pollutants. Bentonite as well has been proved as an excellent adsorbent for heavy metals and organic pollutants removal from wastewaters. In order to combine favorable characteristics of magnetite nanoparticles (easy separation using magnetic field), bentonite (large surface area, high chemical and mechanical stability, low-cost and easily available) and macroporous copolymer (selectivity, possibility of 
additional functionalization, high sorption rate and capacity, recycling capability) a novel magnetic polymer/bentonite nanocomposite was synthesized.",
publisher = "Serbian Academy of Sciences and Arts, Faculty of Technology and Metallurgy,  University of Belgrade",
journal = "Program and Book of abstracts - First International Conference on Electron Microscopy of Nanostructures ELMINA2018, August 27-29, 2018, BRectorate of the University of Belgrade, Belgrade, Serbia",
title = "SEM-EDS and AFM Study of a Novel Magnetic Polymer/Bentonite Nanocomposite",
pages = "207-209",
url = "https://hdl.handle.net/21.15107/rcub_cer_6162"
}
Marković, B., Stefanović, I., Džunuzović, J., Randjelović, D., Kostić, B.,& Nastasović, A.. (2018). SEM-EDS and AFM Study of a Novel Magnetic Polymer/Bentonite Nanocomposite. in Program and Book of abstracts - First International Conference on Electron Microscopy of Nanostructures ELMINA2018, August 27-29, 2018, BRectorate of the University of Belgrade, Belgrade, Serbia
Serbian Academy of Sciences and Arts., 207-209.
https://hdl.handle.net/21.15107/rcub_cer_6162
Marković B, Stefanović I, Džunuzović J, Randjelović D, Kostić B, Nastasović A. SEM-EDS and AFM Study of a Novel Magnetic Polymer/Bentonite Nanocomposite. in Program and Book of abstracts - First International Conference on Electron Microscopy of Nanostructures ELMINA2018, August 27-29, 2018, BRectorate of the University of Belgrade, Belgrade, Serbia. 2018;:207-209.
https://hdl.handle.net/21.15107/rcub_cer_6162 .
Marković, Bojana, Stefanović, Ivan, Džunuzović, Jasna, Randjelović, Danijela, Kostić, Bojan, Nastasović, Aleksandra, "SEM-EDS and AFM Study of a Novel Magnetic Polymer/Bentonite Nanocomposite" in Program and Book of abstracts - First International Conference on Electron Microscopy of Nanostructures ELMINA2018, August 27-29, 2018, BRectorate of the University of Belgrade, Belgrade, Serbia (2018):207-209,
https://hdl.handle.net/21.15107/rcub_cer_6162 .

Structure and morphology of calcined lanthanum doped hydrotalcite

Pavlović, Stefan; Kostić, Bojan; Marinković, Dalibor; Gabrovska, Margarita; Nikolova, Dimitrinka; Lončarević, Davor; Stanković, Miroslav

(Society of Physical Chemists of Serbia, 2018)

TY  - CONF
AU  - Pavlović, Stefan
AU  - Kostić, Bojan
AU  - Marinković, Dalibor
AU  - Gabrovska, Margarita
AU  - Nikolova, Dimitrinka
AU  - Lončarević, Davor
AU  - Stanković, Miroslav
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2889
AB  - Mg-Al hydrotalcites (Mg/Al molar ratio 3/1) doped with varying amounts of
lanthanum were prepared using co-precipitation followed by calcination in
order to study the effect of lanthanum on their structure and morphology.
Samples were characterized by several methods: XRD, FT-IR, SEM-EDS,
LDPSA and MIP. It was found that the addition of lanthanum affects the
structure and morphology of the obtained metal oxides derived from Ladoped
Mg-Al hydrotalcites, making it effective dopant for (Mg/Al/La)Otype
materials, being very promising for various catalytic reactions.
PB  - Society of Physical Chemists of Serbia
PB  - Društvo fizikohemičara Srbije
C3  - Physical Chemistry 2018 – 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry (24-09-2018)
T1  - Structure and morphology of calcined lanthanum doped hydrotalcite
VL  - 2
SP  - 653
EP  - 656
UR  - https://hdl.handle.net/21.15107/rcub_cer_2889
ER  - 
@conference{
author = "Pavlović, Stefan and Kostić, Bojan and Marinković, Dalibor and Gabrovska, Margarita and Nikolova, Dimitrinka and Lončarević, Davor and Stanković, Miroslav",
year = "2018",
abstract = "Mg-Al hydrotalcites (Mg/Al molar ratio 3/1) doped with varying amounts of
lanthanum were prepared using co-precipitation followed by calcination in
order to study the effect of lanthanum on their structure and morphology.
Samples were characterized by several methods: XRD, FT-IR, SEM-EDS,
LDPSA and MIP. It was found that the addition of lanthanum affects the
structure and morphology of the obtained metal oxides derived from Ladoped
Mg-Al hydrotalcites, making it effective dopant for (Mg/Al/La)Otype
materials, being very promising for various catalytic reactions.",
publisher = "Society of Physical Chemists of Serbia, Društvo fizikohemičara Srbije",
journal = "Physical Chemistry 2018 – 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry (24-09-2018)",
title = "Structure and morphology of calcined lanthanum doped hydrotalcite",
volume = "2",
pages = "653-656",
url = "https://hdl.handle.net/21.15107/rcub_cer_2889"
}
Pavlović, S., Kostić, B., Marinković, D., Gabrovska, M., Nikolova, D., Lončarević, D.,& Stanković, M.. (2018). Structure and morphology of calcined lanthanum doped hydrotalcite. in Physical Chemistry 2018 – 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry (24-09-2018)
Society of Physical Chemists of Serbia., 2, 653-656.
https://hdl.handle.net/21.15107/rcub_cer_2889
Pavlović S, Kostić B, Marinković D, Gabrovska M, Nikolova D, Lončarević D, Stanković M. Structure and morphology of calcined lanthanum doped hydrotalcite. in Physical Chemistry 2018 – 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry (24-09-2018). 2018;2:653-656.
https://hdl.handle.net/21.15107/rcub_cer_2889 .
Pavlović, Stefan, Kostić, Bojan, Marinković, Dalibor, Gabrovska, Margarita, Nikolova, Dimitrinka, Lončarević, Davor, Stanković, Miroslav, "Structure and morphology of calcined lanthanum doped hydrotalcite" in Physical Chemistry 2018 – 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry (24-09-2018), 2 (2018):653-656,
https://hdl.handle.net/21.15107/rcub_cer_2889 .