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Helvine

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CR521273

Helvine

Classic Locality

Description Tabs

Description
Locality: 
Unverhofft Glück an der Achte Mine, Antonsthal, Breitenbrunn, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.8 × 2 cm
Description

Pale brown to yellow helvine crystals very rich on matrix on this old time specimen from Armin Wendland collection.

Mineral Data
What's on the rock

Helvine

Formula: 
Mn2+4(Be3Si3O12)S
Strunz: 
9.FB.10
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Friedefürst Mine, Breitenbrunn, Breitenbrunn District, Erzgebirge, Saxony, Germany