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Topaz Var Pyknite

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SHS680777

Topaz Var Pyknite

ex. dealer stock Peter Bosse (Kassel/Germany)

Description Tabs

Description
Locality: 
Altenberg, Erzgebirge, Saxony, Germany
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
14.5 × 7.5 × 5.5 cm
Description

Great piece of pyknite in matrix

Mineral Data
What's on the rock

Topaz

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

Pyknite

Variety Of: 

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Hardness: 
8.0
Hardness: 
0.0
Streak: 
white