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Pharmacosiderite Zincian Olivenite & Mimetite

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PJM39926

Pharmacosiderite Zincian Olivenite & Mimetite

Description Tabs

Description
Locality: 
Kintore Open Cut, Broken Hill, New South Wales, Australia
Size Range: 
Small cabinet (7-10 cm)
Size: 
3.3 × 7.4 × 4.3 cm
Description

A piece of quartzite from the Kintore Opencut has been covered by mimetite barrels and then coated with brown pharmocosiderite crystals, green zincian olivenite, the white mimetite crystals and a fine coating of yellow beudantite across most other exposed surfaces 

This specimen was collected in the early 1990's

Mineral Data
What's on the rock

Pharmacosiderite

Formula: 
KFe3+4(AsO4)3(OH)4·6-7H2O
Strunz: 
8.DK.10
Hardness: 
2.5
Streak: 
white
Type Locality: 
Carharrack Mine, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

Zincian Olivenite

Variety Of: 

Olivenite

Formula: 
Cu2(AsO4)(OH)
Strunz: 
8.BB.30
Hardness: 
3.0
Formula: 
(Cu,Zn)2(AsO4)(OH)
Hardness: 
0.0

Mimetite

Formula: 
Pb5(AsO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Treue Freundschaft Mine, Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany
Earthstones Australia

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