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Tellurobismuthite With Chalcopyrite

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LGM500689

Tellurobismuthite With Chalcopyrite

Ex E. Lehrrieder, Fürth, Germany
Classic Locality

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Description
Locality: 
Mångfallberget, Boliden, Skellefteå, Västerbotten County, Sweden
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.5 × 6 × 3 cm
Weight: 
61.00gr
Description

Tellurobismuthite is a relatively uncommon bismuth telluride, named for its composition. The specimen hosts grains and plates of silvery tellurobismuthite scattered throughout the rock.
Accompanied by minor chalcopyrite.
Rare stuff.

Comes with E. Lehrrieder collection label, dated to the 1980's.

Mineral Data
What's on the rock

Tellurobismuthite

Formula: 
Bi2Te3
Strunz: 
2.DC.05
Crystal System: 
Trigonal
Hardness: 
1.5 - 2.0
Colour: 
Lead-grey
Type Locality: 
Boly Field Mine (Field's Mine; Field's vein), Dahlonega, Lumpkin Co., Georgia, USA...

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

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