Počet záznamů: 1
Agricolaite, a new mineral of uranium from Jáchymov, Czech Republic
- 1.0368288 - GLÚ 2012 RIV AT eng J - Článek v odborném periodiku
Skála, Roman - Ondruš, P. - Veselovský, F. - Císařová, I. - Hloušek, J.
Agricolaite, a new mineral of uranium from Jáchymov, Czech Republic.
Mineralogy and Petrology. Roč. 103, 1/4 (2011), s. 169-175. ISSN 0930-0708. E-ISSN 1438-1168
Výzkumný záměr: CEZ:AV0Z30130516
Klíčová slova: agricolaite * uranyl carbonate * uranium * new mineral * Jáchymov
Kód oboru RIV: DB - Geologie a mineralogie
Impakt faktor: 1.278, rok: 2011
The new mineral agricolaite, a potassium uranyl carbonate, occurs in vugs of ankerite gangue in gneisses in the abandoned Giftkiesstollen adit at Jáchymov, Czech Republic. It occurs as isolated equant irregular translucent grains to 0.3 mm with yellow color, pale yellow streak, and vitreous luster, is brittle with uneven fracture and displays neither cleavage nor parting. Agricolaite is non-fluorescent. Mohs hardness is ~4. It is associated with aragonite, brochantite, posnjakite, malachite, rutherfordine, and “pseudo-voglite”. The mineral is monoclinic, space group C2/c, with a 10.2380(2), b 9.1930(2), c 12.2110(3) Å, β 95.108(2)°, V 1144.71(4) Å3, Z = 4. The structure of agricolaite is identical to that of synthetic K4(UO2)(CO3)3.
Trvalý link: http://hdl.handle.net/11104/0202676
Počet záznamů: 1