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Beyerite & Preisingerite

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JYJ538938

Beyerite & Preisingerite

Description Tabs

Description
Locality: 
Schneeberg, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4.5 × 3.3 cm
Description

A fantastic sample hosting dozens of preisingerite aggregates on colourless beyerite. Both were analysed, as can be proven, in the e-rocks analysis tab. Hosting matrix is mostly native bismuth. 

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

Preisingerite

Formula: 
Bi3(AsO4)2O(OH)
Strunz: 
8.BO.10
Hardness: 
3.0 - 4.0
Type Locality: 
San Francisco de los Andes mine, Calingasta, Calingasta Department, San Juan, Argentina
Analysis
Analysis Report - only: Beyerite & Preisingerite