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Walpurgite & Bismutoferrite

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GMB126553

Walpurgite & Bismutoferrite

Description Tabs

Description
Locality: 
St Georg Mine, Schneeberg, Erzgebirge, Saxony, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 1.5 × 0.5 cm
Description

A good specimen with sharply terminated yellow bladed crystals of walpurgite and and a little bismutoferrite on matrix of typical gangue grey quartz.. Other U-Bi-minerals occurre on the sample but are not determined.

Mineral Data
What's on the rock

Walpurgite

Formula: 
(BiO)4(UO2)(AsO4)2·3H2O
Strunz: 
8.EA.05
Hardness: 
3.5
Type Locality: 
Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany

Bismutoferrite

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

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

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For payment within EU money transfer is preferred:

Marco Drechsel

SPK Mittelsachsen

SWIFT/BIC-Code: WELADED1FGX

IBAN: DE49 870520004111076110