Crystal-chemical characteristics of barite from Zlatar (Serbia)
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Rocks of the Diabase-hornfels formation built great part of Zlatar and its surrounding area. Into the composition of this formation enters: sandstones, siltstones, claystones, hornfels, and fewer limestones, as representatives of the sedimentary rocks; whereas magmatic rocks consist from diabases, spilites, gabbros, and less serpentine. It is very interesting occurrence of barite in this formation, whose outcrop was discovered at the area of about 100 m2. In this paper barite was crystallographicaly and chemically characterized. Observed values of the inter-planar spacings (d), as well as calculated unit cell dimensions of: a = 7.146(1) Å; b = 8.869(1) Å; c = 5.446(1) Å; and V = 345.14(8) Å3; are something smaller regard to the literature data which are adequate to “pure“ barite. Such is consequence of partially (about 2 %) isomorphic substitution of Ba2+ with Sr2+ and Ca2+ cations which have smaller ionic ratio. Presence of Pb2+ cations in the structure is neglected, so the crystal-ch...emical formula of the investigated barite could be presented as: (Ba0.99Ca0.01Sr0.01)1.01S1.00O4.
Keywords:
Zlatar / barite / X-ray investigations / chemical investigationsSource:
Proceedings - 15th Congress of Geologists of Serbia with international participation, 2010, 44-44Publisher:
- Belgrade : Serbian Geological Society
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IHTMTY - CONF AU - Tančić, Pavle AU - Kovačević, Jovan AU - Jovanić, Ivana PY - 2010 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6038 AB - Rocks of the Diabase-hornfels formation built great part of Zlatar and its surrounding area. Into the composition of this formation enters: sandstones, siltstones, claystones, hornfels, and fewer limestones, as representatives of the sedimentary rocks; whereas magmatic rocks consist from diabases, spilites, gabbros, and less serpentine. It is very interesting occurrence of barite in this formation, whose outcrop was discovered at the area of about 100 m2. In this paper barite was crystallographicaly and chemically characterized. Observed values of the inter-planar spacings (d), as well as calculated unit cell dimensions of: a = 7.146(1) Å; b = 8.869(1) Å; c = 5.446(1) Å; and V = 345.14(8) Å3; are something smaller regard to the literature data which are adequate to “pure“ barite. Such is consequence of partially (about 2 %) isomorphic substitution of Ba2+ with Sr2+ and Ca2+ cations which have smaller ionic ratio. Presence of Pb2+ cations in the structure is neglected, so the crystal-chemical formula of the investigated barite could be presented as: (Ba0.99Ca0.01Sr0.01)1.01S1.00O4. PB - Belgrade : Serbian Geological Society C3 - Proceedings - 15th Congress of Geologists of Serbia with international participation T1 - Crystal-chemical characteristics of barite from Zlatar (Serbia) SP - 44 EP - 44 UR - https://hdl.handle.net/21.15107/rcub_cer_6038 ER -
@conference{ author = "Tančić, Pavle and Kovačević, Jovan and Jovanić, Ivana", year = "2010", abstract = "Rocks of the Diabase-hornfels formation built great part of Zlatar and its surrounding area. Into the composition of this formation enters: sandstones, siltstones, claystones, hornfels, and fewer limestones, as representatives of the sedimentary rocks; whereas magmatic rocks consist from diabases, spilites, gabbros, and less serpentine. It is very interesting occurrence of barite in this formation, whose outcrop was discovered at the area of about 100 m2. In this paper barite was crystallographicaly and chemically characterized. Observed values of the inter-planar spacings (d), as well as calculated unit cell dimensions of: a = 7.146(1) Å; b = 8.869(1) Å; c = 5.446(1) Å; and V = 345.14(8) Å3; are something smaller regard to the literature data which are adequate to “pure“ barite. Such is consequence of partially (about 2 %) isomorphic substitution of Ba2+ with Sr2+ and Ca2+ cations which have smaller ionic ratio. Presence of Pb2+ cations in the structure is neglected, so the crystal-chemical formula of the investigated barite could be presented as: (Ba0.99Ca0.01Sr0.01)1.01S1.00O4.", publisher = "Belgrade : Serbian Geological Society", journal = "Proceedings - 15th Congress of Geologists of Serbia with international participation", title = "Crystal-chemical characteristics of barite from Zlatar (Serbia)", pages = "44-44", url = "https://hdl.handle.net/21.15107/rcub_cer_6038" }
Tančić, P., Kovačević, J.,& Jovanić, I.. (2010). Crystal-chemical characteristics of barite from Zlatar (Serbia). in Proceedings - 15th Congress of Geologists of Serbia with international participation Belgrade : Serbian Geological Society., 44-44. https://hdl.handle.net/21.15107/rcub_cer_6038
Tančić P, Kovačević J, Jovanić I. Crystal-chemical characteristics of barite from Zlatar (Serbia). in Proceedings - 15th Congress of Geologists of Serbia with international participation. 2010;:44-44. https://hdl.handle.net/21.15107/rcub_cer_6038 .
Tančić, Pavle, Kovačević, Jovan, Jovanić, Ivana, "Crystal-chemical characteristics of barite from Zlatar (Serbia)" in Proceedings - 15th Congress of Geologists of Serbia with international participation (2010):44-44, https://hdl.handle.net/21.15107/rcub_cer_6038 .