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Hydrocalumite

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Hydrocalumite

Rare Mineral

Description Tabs

Description
Locality: 
Kopeysk, Chelyabinsk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.5 × 0.5 × 0.3 cm
Description

Brown crystals of the rare mineral hydrocalumite on a contrasting matrix.

 

Mineral Data
What's on the rock

Hydrocalumite

Formula: 
Ca4Al2(OH)12(Cl,CO3,OH)2·4H2O
Strunz: 
4.FL.10
Hardness: 
3.0
Type Locality: 
Scawt Hill, Larne, Co. Antrim, Northern Ireland, UK

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