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Coloradoite & Sylvanite

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SHS193142

Coloradoite & Sylvanite

Description Tabs

Description
Locality: 
Mayflower Prospect, Whitehall, Madison County, Montana, United States of America
Size Range: 
Micromount (under 1cm)
Size: 
0.3 × 0.2 × 0.2 cm
Description

 Nice coloradoite and sylvanite in matrix

Mineral Data
What's on the rock

Coloradoite

Formula: 
HgTe
Strunz: 
2.CB.05a
Hardness: 
2.5 - 0.0
Type Locality: 
Keystone Mine, Magnolia District, Boulder Co., Colorado, USA

Sylvanite

Formula: 
(Au,Ag)2Te4
Strunz: 
2.EA.05
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.0
Type Locality: 
Baia de Arieş (Offenbánya), Alba Co., Romania