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Murdochite Smithsonite & Hemimorphite

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UVM712729

Murdochite Smithsonite & Hemimorphite

Classic Locality

Description Tabs

Description
Locality: 
79 Mine, Chilito, Banner District, Gila County, Arizona, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.1 × 2 cm
Description

Black crystalline aggregates of murdochite on well crystallized smithsonite with blades of hemimorphite.   Collected by George Stevens in the 1990s.

Mineral Data
What's on the rock

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

Smithsonite

Formula: 
ZnCO3
Strunz: 
5.AB.05
Hardness: 
4.0 - 4.5
Streak: 
White

Hemimorphite

Formula: 
Zn4Si2O7(OH)2·H2O
Strunz: 
9.BD.10
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Băiţa Mining District (Baita Bihor; Rézbánya), Nucet, Bihor Co., Romania

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