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Chalcophanite On Pyrolusite

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PJM99857

Chalcophanite On Pyrolusite

Description Tabs

Description
Locality: 
Iron Monarch Open Cut, Iron Knob, Middleback Range, Eyre Peninsula, South Australia, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2.3 × 2.1 cm
Description

A rich deep chocolate brown coverage oh chalcophanite over thin bladed pyrolusite crystals. This specimen was collected in 1980 from the Iro Monarch Opencut

Mineral Data
What's on the rock

Chalcophanite

Formula: 
(Zn,Fe,Mn)Mn3O7·3H2O
Strunz: 
4.FL.20
Crystal System: 
Trigonal
Hardness: 
2.5
Type Locality: 
Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Pyrolusite

Formula: 
MnO2
Strunz: 
4.DB.05
Hardness: 
2.0 - 6.5
Earthstones Australia

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