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Bismutite

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CR723462

Bismutite

Classic Locality

Description Tabs

Description
Locality: 
Weißer Hirsch Mine, Neustädtel, Schneeberg, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 3 × 2.8 cm
Description

This is a very old and interesting specimen of bismutite from Erzgebirge, Germany.

Globular crystallized bismutite (Bismutosphärite) in vugs of the quartz matrix.

With minor tiny black Preisingerite crystals (EDS analysed)

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