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Boracite

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CR152828

Boracite

Description Tabs

Description
Locality: 
Gröna Mine, Bernburg, Stassfurt, Saxony - Anhalt, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3 × 1.4 cm
Largest Crystal: 
0.70cm
Description

Sharp and translucent, large boracite crystals on anhydrite matrix.

Very good old specimen. Ex Peter Schlegel collection.

Mineral Data
What's on the rock

Boracite

Formula: 
Mg3(B7O13)Cl
Strunz: 
6.GA.05
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 7.5
Streak: 
White
Type Locality: 
Lüneburger Kalkberg, Lüneburg, Lower Saxony, Germany