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Gold With Bournonite & Pyrite

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LGM610649

Gold With Bournonite & Pyrite

Ex Lehnen collection, Möchgengladbach, Germany
Classic Locality

Description Tabs

Description
Locality: 
Brandholz Goldkronach District, Upper Franconia, Bavaria, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 3.3 × 2.2 cm
Weight: 
32.00gr
Description

Gold ore sample from famous german Brandholz-Goldkronach (Bavaria) district. The specimen features a small gold speck in matrix (red arrow), the blue arrow point to a crystalline mass of bournonite. Also some small cubic pyrite crystals are present.
A sought-after german classic!

Mineral Data
What's on the rock

Gold

Formula: 
Au
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

Bournonite

Formula: 
PbCuSbS3
Strunz: 
2.GA.50
Hardness: 
2.5 - 3.0
Type Locality: 
Wheal Boys (Trewetha Mine; Old Trewetha Mine), Port Isaac, St Endellion, Wadebridge District, Cornwall, England, UK

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

Seller Information

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Seller's terms and conditions

Thank you for viewing my auctions! Maintaining high standards in customer service is extremely important to me. If shipping takes longer than expected, please contact me. It is possible to file an investigation request, and during nearly ten years of e-rocks NO parcel was finally lost.

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+++IMPORTANT+++
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