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Jáchymovite Uranopilite & Johannite

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BCK686362

Jáchymovite Uranopilite & Johannite

David Burgess Collection
Type Locality

Description Tabs

Description
Locality: 
Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 3.3 × 2.8 cm
Description

You are bidding on a large sample with some nice yellow lathes of extremely rare jachymovite growing on a patch of uranopilite needles. There are also dozens of other uranopilite clusters with small green crystals of johannite, unknown clusters of white tabular crystals and perhaps magnesiozippeite. Rich and rare sample from the David Burgess collection. 

Mineral Data
What's on the rock

Jáchymovite

Formula: 
(UO2)8(SO4)(OH)14·13H2O
Strunz: 
7.EA.10
Crystal System: 
Monoclinic
Hardness: 
0.0
Colour: 
yellow
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Uranopilite

Formula: 
(UO2)6(SO4)O2(OH)6·14H2O
Strunz: 
7.EA.05
Crystal System: 
Monoclinic
Hardness: 
0.0
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Johannite

Formula: 
Cu(UO2)2(SO4)2(OH)2·8H2O
Strunz: 
7.EB.05
Crystal System: 
Triclinic
Hardness: 
2.0 - 2.5
Colour: 
Emerald-green
Type Locality: 
Elias Mine, Jáchymov, Krušné Hory, Karlovy Vary, Bohemia, Czech Republic

Seller Information

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