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Gold Pyrite Petzite & Hessite

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ESM768085

Gold Pyrite Petzite & Hessite

Description Tabs

Description
Locality: 
Rex Mine, Gold Hill, Boulder County, Colorado, United States of America
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 0.8 × 0.7 cm
Description

Crystallized gold with pyrite cubes and metallic petzite and hessite on matrix

Mineral Data
What's on the rock

Gold

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

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

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...