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Semseyite Quartz & Bindheimite

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SCH218201

Semseyite Quartz & Bindheimite

Description Tabs

Description
Locality: 
Ally, Haute-Loire, Auvergne-Rhône-Alpes, France
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 3.6 × 4.2 cm
Description

Rich bright silvery semseyite crystals covering matrix with very minor bindheimite and scattered over quartz. Rare and very hard to photograph!

Mineral Data
What's on the rock

Semseyite

Formula: 
Pb9Sb8S21
Strunz: 
2.HC.10d
Hardness: 
2.5
Streak: 
Black
Type Locality: 
Baia Sprie mine (Felsöbánya mine), Baia Sprie (Felsöbánya), Maramureș Co., Romania

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Bindheimite

Formula: 
Pb2Sb25+O7
Strunz: 
4.DH.20
Crystal System: 
Isometric
Hardness: 
4 - 4.5
Colour: 
Yellow, yellow-brown
schani

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