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Johannite

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SMM677830

Johannite

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Description
Locality: 
Val Daone Mine, Limes, Daone, Chiese Valley, Trento Province, Trentino-Alto Adige, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 0.8 × 0.5 cm
Description

A small nice sample of mint-green crystals of johannite, in the sample there are white to colorless gypsum crystals.

Boxed with Label
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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