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Hydroboracite On Anhydrite

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RHT725699

Hydroboracite On Anhydrite

Classic Locality

Description Tabs

Description
Locality: 
Niedersachswerfen, Nordhausen, Thuringia, Germany
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11.7 × 8 × 7.8 cm
Weight: 
721.00gr
Description

Huge specimen of radial grown glossy white hydroboracite crystals on grayish anhydrite. Very hard to find.

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
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