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Topaz Var Pyknite Psm Feldspar

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MEX215709

Topaz Var Pyknite Psm Feldspar

Classic Locality

Description Tabs

Description
Locality: 
Altenberg, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.6 × 5.8 × 2.5 cm
Largest Crystal: 
4.00cm
Description

Nice specimen with an intensive contrast between pyknite and the black muscovite. A pyknite is an variety name for a topaz psm after feldspar and the mine in altenberg brought the best specimen on the daylight. This translucent pyknite shows an intensive yellow color.

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

Feldspar

Group Parent: 
Feldspar Group