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Hydroboracite & Anhydrite

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KAT842492

Hydroboracite & Anhydrite

Description Tabs

Description
Locality: 
Kohnstein Quarry, Niedersachswerfen, Nordhausen District, Thuringia, Germany
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.9 × 3.8 × 4.8 cm
Description

very esthetic specimen of sharp, well terminated, colorless, very bright and waterclear hydroboracite crystals, combined with white anhydrite

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...

Anhydrite

Formula: 
CaSO4
Strunz: 
7.AD.30
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 3.5
Type Locality: 
Salt mine, Hall valley, Hall, Innsbruck, Inn valley, North Tyrol, Tyrol, Austria

Seller Information

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