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Offretite

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GMN637688

Offretite

Description Tabs

Description
Locality: 
Nový Oldřichov-Mistrovice, Česká Lípa, Liberec Region, Czech Republic
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 2.5 × 1 cm
Description

Nice offretite balls of columnar crystals in the matrix cavity.

Mineral Data
What's on the rock

Offretite

Formula: 
KCaMgAl5Si13O36·16H2O or near
Strunz: 
9.GD.25
Hardness: 
4.0 - 4.5
Type Locality: 
Mont Semiol (Mont Semiouse; Mont Simiouse), Châtelneuf, Saint-Georges-en-Couzan, Loire, Rhône-Alpes, France

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