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Goldfieldite & Juabite

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JYJ834559

Goldfieldite & Juabite

Description Tabs

Description
Locality: 
North Star Mine, Mammoth, Tintic District, Juab County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.2 × 0.8 cm
Description

Black metallic goldfieldite in quartz associated with different habits of juabite. SEM-EDS confirmed no 826. Analysis in the analytical section. 

 

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

Juabite

Formula: 
CaCu10(TeO3)4(AsO4)4(OH)2·4H2O
Strunz: 
4.JN.30
Crystal System: 
Triclinic
Hardness: 
3.0 - 4.0
Type Locality: 
Centennial Eureka Mine (Blue Rock), Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA
Analysis
Analysis Report - only: Goldfieldite & Juabite
Analysis Report - only: Goldfieldite & Juabite
Analysis Report - only: Goldfieldite & Juabite
Analysis Report - only: Goldfieldite & Juabite