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Topaz Var Pyknite

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MNR117818

Topaz Var Pyknite

Classic Locality

Description Tabs

Description
Locality: 
Altenberg, Erzgebirge, Saxony, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4 × 3.8 cm
Description

Typical yellow pyknite with black biotite. Pyknite is not common topaz variety found only at couple places in the world.

Free shipping up to 1 kg (2 lbs), if conditions met (see the auction header).

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