Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Preisingerite & Beyerite

Views:
Watches:
JYJ214132

Preisingerite & Beyerite

EDS analysed

Description Tabs

Description
Locality: 
Schneeberg, Erzgebirge, Saxony, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 4 × 2.8 cm
Description

Lots of black to brown translucent preisingerite rosettes over the top of the bismuth-rich matrix. The gaps are filled with sparkling colourless beyerite. Analysed.

Mineral Data
What's on the rock

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

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