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Jáchymovite Gallery

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Jáchymovite : (UO2)8[(OH)14|SO4] · 13H2O

Jáchymov (St Joachimsthal), Ostrov, Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Yellow crystals of jachymovite. Picture size 3 mm. Photographer and collection Thomas Witzke.
 © Thomas WitzkePhoto ID: 8127    View Count: 857

Jáchymovite : (UO2)8[(OH)14|SO4] · 13H2O, Uranopilite : (UO2)6[(OH)10|SO4] · 12H2O

Jáchymov (St Joachimsthal), Ostrov, Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Nearly impossible to distinguish visibly, tannish-yellow jachymovite with bright yellow uranopilite, as scaly coatings on matrix. Easily to distinguish via UV-SW illumination, as uranopilite has a significantly brighter fluorescent response. S114-12
0.4 cm field of view, horizontal.
Specimen courtesy of Josed Vajdak.
 © 2008, JGWPhoto ID: 144537    View Count: 236
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