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Sylvanite

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PDM944910

Sylvanite

Classic Locality

Description Tabs

Description
Locality: 
Cresson Mine, Eclipse Gulch, Cripple Creek, Teller County, Colorado, United States of America
Class: 
Single Crystal
Size Range: 
Micromount (under 1cm)
Size: 
0.3 × 0.2 × 0.1 cm
Description

Sylvanite is a rare gold-silver telluride and this is a sharp whitish-silvery crystallized specimen of very intense metallic lustre and perfect defined striated faces. A representative crystallized piece of sylvanite from the Cresson Mine, a classic American locality.

Ex Georges Vanacker*, specimen #2/703.

*Vanackerite from Tsumeb is named after him.

Mineral Data
What's on the rock

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

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