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Utahite & Zincospiroffite

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JYJ969619

Utahite & Zincospiroffite

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: 
2.3 × 1.7 × 1.1 cm
Description

Blue utahite with green dagenaisite and beige zincospiroffite on baryte quartz matrix. 

Rare mineral. Analysed material. 

Mineral Data
What's on the rock

Utahite

Formula: 
Cu5Zn3(TeO4)4(OH)8·7H2O
Strunz: 
7.DE.25
Crystal System: 
Triclinic
Hardness: 
4.0 - 5.0
Type Locality: 
Centennial Eureka Mine (Blue Rock), Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA

Zincospiroffite

Formula: 
Zn2Te4+3O8
Strunz: 
4.JK.10
Hardness: 
2.5 - 0.0
Colour: 
Grey
Type Locality: 
Zhongshangou Mine, Dongping Au-Te ore field, Chongli Co., Zhangjiakou Prefecture, Hebei Province, China