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Murdochite & Brochantite

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RBM594806

Murdochite & Brochantite

Description Tabs

Description
Locality: 
Dos Adrianas Mine, Tierra Amarilla, Copiapó Province, Atacama Region, Chile
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.4 × 2.5 cm
Description

Acicular crystals of brochantite, cover entire the sample.The look of the show is like a velvet from green to light blue colour. Over the fine crystals are arranged microcrystals cubes of shiny murdochite. 

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

Brochantite

Formula: 
Cu4(SO4)(OH)6
Strunz: 
7.BB.25
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Mednorudyanskoye Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...

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