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Grimselite

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JYJ967495

Grimselite

Description Tabs

Description
Locality: 
Rovnost Mine, Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.5 × 1.5 cm
Description

Yellow, partially transparent grimselite from the Rovnost mine, Jáchymov, Czech Republic. 

Rare mineral. 

 

Mineral Data
What's on the rock

Grimselite

Formula: 
K3Na(UO2)(CO3)3·H2O
Strunz: 
5.ED.35
Crystal System: 
Hexagonal
Hardness: 
0.0
Type Locality: 
Gerstenegg-Sommerloch tunnel, Gerstenegg, Grimsel area, Hasli Valley, Bern, Switzerland