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Grimselite

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CAM61761

Grimselite

Rare Mineral

Description Tabs

Description
Locality: 
Svornost Mine, Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.3 × 1.6 cm
Description

Grimselite is a very rare potassium-sodium-uranyl-carbonate named after it's Type locality, Grimsel in Switserland. This specimen from Jachymov (Joachimstal), one of the two know localities for this species, has a good coverage of tiny transparent yellow crystals on a contrasting brown matrix.

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
Cartils Minerals

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