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Pseudojohannite Gallery

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Pseudojohannite : Cu6.5(UO2)8[O8|(OH)5|(SO4)4] · 25H2O, Johannite : Cu(UO2)2[OH|SO4]2 · 8H2O

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

Yellow crystalline / crusty pseudojohannite, with areas of green johannite.
0.6 cm field of view. S400-14
Specimen courtesy of Josef Vajdak, Pequa Rare Minerals.
 © 2008, JGWPhoto ID: 144542    View Count: 130

Pseudojohannite : Cu6.5(UO2)8[O8|(OH)5|(SO4)4] · 25H2O

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

Monoclinic crystals of pseudojohannite associated with johannite and uranopilite. Part of the type specimen. Field of view, 0.5mm x 0.5mm. Brent Thorne specimen and photograph.
 © Brent Thorne 2007Photo ID: 107291    View Count: 247
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