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Helvine

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CR135569

Helvine

With Antique Label

Description Tabs

Description
Locality: 
Schwarzenberg, Erzgebirge, Saxony, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 6 × 3 cm
Description

This is a very old helvine specimen with a fantastic old label.

Ex Alex Franz collection and label.

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