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Goldfieldite & Native Gold

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JYJ580489

Goldfieldite & Native Gold

EDS analysed

Description Tabs

Description
Locality: 
May Day Mine, La Plata County, Colorado, United States of America
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 1.5 × 1.3 cm
Description

Analysed  grey goldfieldite specimen with an inner quartz core surrounded by native gold. Minor hessite present. 

Mineral Data
What's on the rock

Goldfieldite

Formula: 
Cu10Te4S13
Strunz: 
2.GB.05
Hardness: 
3.0 - 3.5
Type Locality: 
Mohawk Mine, Goldfield, Goldfield District, Esmeralda Co., Nevada, USA

Gold

Formula: 
Au
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0