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Beyerite

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TPX948165

Beyerite

Rare Mineral

Description Tabs

Description
Locality: 
El Valle-Boinás Mine, Belmonte de Miranda, Asturias, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 5.4 × 3.8 cm
Weight: 
126.00gr
Description

Very interesting specimen of bayerite on matrix, a very rare mineral in this Spanish gold deposit.

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

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