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Hemimorphite Plattnerite & Murdochite

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MCH578746

Hemimorphite Plattnerite & Murdochite

Description Tabs

Description
Locality: 
San Antonio Mine, East Camp, Santa Eulalia, Aquiles Serdán Municipality, Chihuahua, Mexico
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 2.8 × 2.4 cm
Description

An eye catching specimen with numerous clear, sharp and colourless hemimorphite crystals including a marvellous fan shaped 1.8 cm aggregate of hemimorphite with a few slightly greenish translucent crystals on its top (second generation of hemimorphite?). On and close to the contact to the gossan/goethite material several small dark acicular crystals of plattnerite can be observed as well as tiny black crystals of murdochite.

Mineral Data
What's on the rock

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

Plattnerite

Formula: 
PbO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal
Hardness: 
5.5
Type Locality: 
Leadhills, South Lanarkshire, Strathclyde (Lanarkshire), Scotland, UK

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

Seller Information

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