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Fornacite Murdochite & Wickenburgite

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UVM684239

Fornacite Murdochite & Wickenburgite

Description Tabs

Description
Locality: 
Evening Star Mine, Tiger Wash, Tonopah, Maricopa County, Arizona, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 3.3 × 1.5 cm
Description

An interesting combination specimen featuring green fornacite crystals in parallel growth associated with mimetite.   Some of the mimetite is coated with tiny black crystals of murdochite, and colorless rosettes of wickenburgite can be found as well.

Mineral Data
What's on the rock

Fornacite

Formula: 
Pb2Cu(CrO4)(AsO4)(OH)
Strunz: 
7.FC.10
Hardness: 
2.0 - 3.0
Type Locality: 
Renéville Mine (Djoué Mines), Renéville, Kindanba District, Pool Department, Republic of Congo (Brazzaville)

Murdochite

Formula: 
PbCu6O8-x(Cl,Br)2x where x<=0.5
Strunz: 
3.DB.45
Crystal System: 
Isometric
Hardness: 
4.0
Colour: 
Black
Streak: 
Black
Type Locality: 
Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA

Wickenburgite

Formula: 
CaPb3Al2Si10O24(OH)6
Strunz: 
9.EG.55
Hardness: 
5.0
Streak: 
White
Type Locality: 
Potter-Cramer Mine (Potter Cramer property), Vulture District, Vulture Mts, Maricopa Co., Arizona, USA

Seller Information

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