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Bismutite

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ESM685288

Bismutite

Rare Mineral

Description Tabs

Description
Locality: 
Käfersteige Mine, Würm, Karlsruhe Region, Baden-Württemberg, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 2.4 × 1.7 cm
Description

Bismutite crystals covering emplectite needles

Mineral Data
What's on the rock

Bismutite

Formula: 
(BiO)2CO3
Strunz: 
5.BE.25
Crystal System: 
Tetragonal
Hardness: 
2.5 - 3.5
Streak: 
Grey
Type Locality: 
Arme Hilfe Mine, Ullersreuth, Hirschberg, Vogtland, Thuringia, Germany