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Beyerite

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GFM1058379

Beyerite

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Description Tabs

Description
Locality: 
Stamm Asser Mine, Graul, Langenberg, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.5 × 1 cm
Description

 The rare Calcium-Bismuth-Carbonate forms white fibrous crystal aggregates of 5 mm, very rich in a brownish Quartz matrix. Old newly examined specimen from the 1960s.

Mineral Data
What's on the rock

Beyerite

Formula: 
Ca(BiO)2(CO3)2
Strunz: 
5.BE.35
Crystal System: 
Tetragonal Thin plates or compact earthy masses.
Hardness: 
2.0 - 3.0
Streak: 
white
Type Locality: 
Schneeberg District, Erzgebirge, Saxony, Germany