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Hydroboracite

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CR70059

Hydroboracite

Rare Mineral

Description Tabs

Description
Locality: 
Kohnstein Quarry, Harztor, Nordhausen, Thuringia, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 2.3 × 1.5 cm
Largest Crystal: 
5.50cm
Description

Beautiful cluster of very large, gemmy hydroboracite crystals.# 6

Mineral Data
What's on the rock

Hydroboracite

Formula: 
CaMg[B3O4(OH)3]2·3H2O
Strunz: 
6.CB.15
Hardness: 
2.0
Type Locality: 
Inder B deposit and salt dome, Atyrau (Gur'yev), Atyrau Province (Atyrau Oblysy; Atyrau Oblast'), Kazakhstan...