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Preisingerite & Bismutoferrite

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CAM185238

Preisingerite & Bismutoferrite

Classic Locality

Description Tabs

Description
Locality: 
Pucher Shaft, Schneeberg, Erzgebirge, Saxony, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 1.8 × 1.4 cm
Description

Small lustrous greyish yellow preisingerite crystals in spherical clusters on a matrix of green botryoidal bismutoferrite.
A very good example of these two rare species.

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

Bismutoferrite

Formula: 
Fe3+2Bi(SiO4)2(OH)
Strunz: 
9.ED.25
Hardness: 
6.0
Type Locality: 
Schneeberg District, Erzgebirge, Saxony, Germany
Cartils Minerals

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