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Orthoclase Topaz & Beryl

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CLB211035

Orthoclase Topaz & Beryl

ex collection Uwe Nielsen
Classic Locality

Description Tabs

Description
Locality: 
Silberhaus, Tröstau, Upper Franconia, Bavaria, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 4.9 × 4.7 cm
Largest Crystal: 
3.50cm
Description

A large white orthoclase crystal and his smaller buddy on matrix with minor grayish and orange-brown topaz and yellowish-greenish beryl (not pictured in detail). There are a lot of localities in the region - like Epprechtstein - so it is very likely that this might be a unique find someplace not listed on Mindat.

Mineral Data
What's on the rock

Orthoclase

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0
Streak: 
White

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
8.0
Streak: 
White

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Crystal System: 
Hexagonal
Hardness: 
7.5 - 8.0
Streak: 
White

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