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Kinoshitalite with a high magnesium content in sulphide-rich marbles from the Rožná uranium deposit, Western Moravia, Czech Republic

Basic information
Original title:Kinoshitalite with a high magnesium content in sulphide-rich marbles from the Rožná uranium deposit, Western Moravia, Czech Republic
Authors:Hana Doležalová, Stanislav Houzar, Zdeněk Losos, Radek Škoda
Further information
Citation:DOLEŽALOVÁ, Hana, Stanislav HOUZAR, Zdeněk LOSOS and Radek ŠKODA. Kinoshitalite with a high magnesium content in sulphide-rich marbles from the Rožná uranium deposit, Western Moravia, Czech Republic (Kinoshitalite with a high magnesium content in sulphide-rich marbles from the Rožná uranium deposit, Western Moravia, Czech Republic). Neues Jahrbuch fur Mineralogie, Abhandlungen, Stuttgart: E.Schweitzerbatsch Verlagsbuchhandlung, 2006, 182/2006, No 2, p. 165-171. ISSN 0028-3649.Export BibTeX
@article{619644,
author = {Doležalová, Hana and Houzar, Stanislav and Losos, Zdeněk and Škoda, Radek},
article_location = {Stuttgart},
article_number = {2},
keywords = {kinoshitalite; Ba-micas; sphalerite; marble; Rožná uranium deposit; Moldanubicum; Bohemian Massif; Czech Republic},
language = {eng},
issn = {0028-3649},
journal = {Neues Jahrbuch fur Mineralogie, Abhandlungen},
title = {Kinoshitalite with a high magnesium content in sulphide-rich marbles from the Rožná uranium deposit, Western Moravia, Czech Republic},
volume = {182/2006},
year = {2006}
}
Original language:English
Field:Geology and mineralogy
Type:Article in Periodical
Keywords:kinoshitalite; Ba-micas; sphalerite; marble; Rožná uranium deposit; Moldanubicum; Bohemian Massif; Czech Republic

Ba-micas including magnesian kinoshitalite (XMg more than 0.99) were found in sulphide-rich dolomite marbles at the Rožná uranium deposit, Moldanubicum, Czech Republic. The Ba-micas (phlogopite with Ba > 0.280 apfu and kinoshitalite with Ba from 0.869 to 1.244 apfu) are Mn, Fe and Ti-poor in comparison to other Ba-micas described up to date. The main substitution mechanism in Ba-micas is (Ba2+,Ca2+) (Al3+) (K+,Na+)-1 Si4+-1. Relatively high content of Mn in silicates and carbonates from the host marble is in contrast to the chemistry of Ba-micas. Barium and manganese show distinct behaviour during metamorphism. Manganese and iron were probably partitioned to metamorphic sphalerite and pyrrhotite relative to (Mn, Fe)-poor Ba-micas. Barium concentrated in mica minerals and the system was evidently Ba-depleted in late stages.

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