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Gahnite

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PDM823720

Gahnite

Classic Locality

Description Tabs

Description
Locality: 
Bjurliden, Norsjö, Västerbotten County, Sweden
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.4 × 2.3 × 2.2 cm
Largest Crystal: 
0.40cm
Description

Well-formed black lustrous octahedral crystals of gahnite in matrix. Old specimen, acquired in 1989 from and old collection by Georges Vanacker*.

*Vanackerite from Tsumeb was named after him.

Mineral Data
What's on the rock

Gahnite

Formula: 
ZnAl2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
7.5 - 8.0
Streak: 
Grey
Type Locality: 
Falun mine, Falun, Dalarna, Sweden

Seller Information

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