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Topaz Var Pyknite

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PDM1041405

Topaz Var Pyknite

Classic Locality

Description Tabs

Description
Locality: 
Cínovec/Zinnwald, Teplice, Ústí nad Labem Region, Czech Republic
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.9 × 6.1 × 3.3 cm
Weight: 
180.00gr
Description

Subparallel aggregate of prismatic crystals of topaz (variety pyknite) from Zinnwald, a classic European locality. Acquired in 1977 to Krantz by Wilfred Moorer (1945-2015).

Combine specimens to reduce shipping costs!.

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

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