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Utahite Yafsoanite & Native Gold

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JYJ829145

Utahite Yafsoanite & Native Gold

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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 × 1.5 × 1.1 cm
Description

Dark blue utahite groups in cavities of baryte and quartz, native gold and zincospiroffite. The yafsoanite has been identified as the globular colourless groups close to the utahite - see analysis.

Rare mineral, very good 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

Yafsoanite

Formula: 
Ca3Zn3(TeO6)2
Strunz: 
4.CC.25
Crystal System: 
Isometric
Hardness: 
5.5
Type Locality: 
Kuranakh Au Deposit, Aldan, Aldan Shield, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

Gold

Formula: 
Au
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0
Analysis
Analysis Report - only: Utahite Yafsoanite & Native Gold

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Start 17 Feb 18:00
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Shipping Information

Postage Area Price
Germany: Insured parcel 5€
5
International <500g tracked not insured - 7.35€
7.35
International <500g insured 8.60€ + 2€ for each 100€ Insurance
8.60
International > 500g < 1000g 12€
12
EU insured parcel - 14€
14
Worldwide < 5000g insured parcel 40€
40

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