Introduction
Periodicals
Bulletin mineralogicko-petrologického oddělení Národního muzea v Praze
2012/20/2
Saléeit z uranového rudního revíru Jáchymov (Česká republika)
Saléeit z uranového rudního revíru Jáchymov (Česká republika)
Radim Pavlíček, Karel Babka, Jiří Sejkora
| Pages | 208-212 |
|---|---|
| Citation | PAVLÍČEK, Radim, BABKA, Karel a SEJKORA, Jiří. Saléeit z uranového rudního revíru Jáchymov (Česká republika). Bulletin mineralogicko-petrologického oddělení Národního muzea v Praze. Prague: National Museum, 2012, 20(2), 208-212. ISSN 1211-0329 (print), 1804-6495 (online). Also available from: https://publikace.nm.cz/en/periodicals/bmpholnrhmvp/20-2/saleeit-z-uranoveho-rudniho-reviru-jachymov-ceska-republika |
A hydrated magnesium uranyl phosphate, mineral saléeite, was found in the dump material of the western part of the Rovnost uranium deposit, the Jáchymov ore district, Krušné hory Mountains, Czech Republic. Saléeite occurs as tiny (up to 0.5 mm) yellow tabular crystals formed small groups and radial aggregates in cavities of ore gangue or yellow irregular agregates and coatings up to 5 mm in gangue fractures. Metatorbernite, brochantite and mineral of the phosphuranylite - dewindtite serie were found in association. Saléeite is monoclinic, space group P21/c, the unit-cell parameters refined from X-ray powder diffraction data are: a 7.018(7), b 19.961(4), c 9.968(7), β 135.27(3) and V 983(2) Å3. Chemical analyses correspond to empirical formula(Mg0.61Ca0.21Fe0.11Cu0.09Pb0.02Zn0.02)Σ1.06 (UO2)2.01 [(PO4)1.51(AsO4)0.46(SiO4)0.03]Σ2.00 . 10H2O on the basis (P+As+Si) = 2 apfu. Saléeite originated there by weathering of primary uranium minerals in the conditions of supergene zone in-situ.
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