Plumbojarosit z Nové Vsi u Rýmařova

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Acta Mus. Moraviae, Sci. Geol. 97 (2012), vydání 1, stránky 47–54
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Plumbojarosite from Nová Ves near Rýmařov

A (sub)recent mineral assemblage with plumbojarosite was identified in a waste rock dump material of a former Boží dar mine at Pb-Zn deposit Nová Ves near Rýmařov, Czech Republic. The plumbojarosite forms abundant fine-grained earthy yellow coatings on ore fragments. The mineral was identified by X-ray powder diffraction, the refined unit-cell parameters are a = 7.3203(9) Å; c = 33.773(4) Å. Its chemical composition is close to the ideal end-member formula with only minor amounts of K, H3O+ and Zn. The plumbojarosite origin in the topmost part of the weathered dump material reflects galena and anglesite reactions with acid solutions derived from pyrite decomposition.

Kontakt:

Eva Kocourková, Department of Mineralogy and Petrography, Moravian Museum, Zelný trh 6, 659 37 Brno, Czech Republic, ekocourkova@mzm.cz

Jiří Sejkora, Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Praha 9 – Horní Počernice, Czech Republic, jiri_sejkora@nm.cz

Citace
Kocourková, E., Sejkora, J., 2012: Plumbojarosit z Nové Vsi u Rýmařova. – Acta Mus. Morav., Sci. Geol., 97, 1, 47–54 (with English summary)
ISSN: 1211–8796