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Mummeite

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SHS39811

Mummeite

Description Tabs

Description
Locality: 
Vyšná Boca, Liptovský Mikuláš County, Zilina Region, Slovakia (Slovak Republic)
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2.4 × 1.2 cm
Description

Gray metallic mass of Mummeite with friedrichite and hammarite

Mineral Data
What's on the rock

Mummeite

Formula: 
(Cu,Ag)3-4(Bi,Pb)7-8S13
Strunz: 
2.JA.05f
Crystal System: 
Monoclinic
Hardness: 
4.0
Type Locality: 
Alaska Mine, Alaska Basin, Poughkeepsie Gulch, San Juan Co., Colorado, USA