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Johannite

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PPM1113161

Description Tabs

Description
Locality: 
Svornost Mine, Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 5.6 × 4.3 cm
Weight: 
112.00gr
Description

Superb specimen for this rare uranium mineral featuring neon-green crystal (rare!) aggregates of johannite on uranium ore matrix from a classic Czech locality. Very fine specimen for this rare mineral at this famous European locality, with a well-documented provenance. From the noted collection of Eric Quinter (1947-2024), one of the best private collections of uranium minerals in the United States! 

Posted on Mindat, Harold Moritz's Photo Gallery (Coll. #U/Th 0709)

Mineral Data
What's on the rock

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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