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Arsentsumebite & Chalcosiderite On Mimetite

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PJM139970

Arsentsumebite & Chalcosiderite On Mimetite

Description Tabs

Description
Locality: 
Block 14 Opencut, Broken Hill, Yancowinna County, New South Wales, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.4 × 3.3 × 1.8 cm
Description

<p>Bright green sphericals of arsentsumebite with blue green crystals of chalcosiderite(?) and all associated with gemmy pale yellowish mumimetite crystals. The chalcosiderite identification is questionable and more work needs to be done on the blue green crystals groups.</p>

Mineral Data
What's on the rock

Arsentsumebite

Formula: 
Pb2Cu(AsO4)(SO4)(OH)
Strunz: 
8.BG.05
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Chalcosiderite

Formula: 
Cu(Fe3+,Al)6(PO4)4(OH)8·4H2O
Strunz: 
8.DD.15
Crystal System: 
Triclinic
Hardness: 
4.5
Type Locality: 
Phoenix United Mine, Minions, Linkinhorne, Liskeard District, Cornwall, England, UK

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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