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Gold Petzite & Hessite

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PCZ541565

Gold Petzite & Hessite

Description Tabs

Description
Locality: 
Rex Mine, Gold Hill, Boulder County, Colorado, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.5 × 2 cm
Description

Small areas of gold with petzite and hessite (gold telurides) from a less common locality. 

Mineral Data
What's on the rock

Gold

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

Petzite

Formula: 
Ag3AuTe2
Strunz: 
2.BA.75
Hardness: 
2.5 - 3.0
Type Locality: 
Sacarîmb (Sãcãrâmb; Szekerembe; Nagyág), Deva, Hunedoara Co., Romania

Hessite

Formula: 
Ag2Te
Strunz: 
2.BA.60
Hardness: 
2.0 - 3.0
Streak: 
black
Type Locality: 
Koz'modem'yanskii shaft, Second Zavodinskii Mine (Second Sawodinsk Mine), Zyryanovsk Rayon, Altai Mts (Rudnyi Altai), Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast'), Kazakhstan...
Peter Crozier Minerals