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Cobaltaustinite Smolyaninovite & Erythrite

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PJM203295

Cobaltaustinite Smolyaninovite & Erythrite

Description Tabs

Description
Locality: 
Dome Rock Copper Mine, Boolcoomatta Reserve, Olary Province, South Australia, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 6 × 3.5 cm
Description

 A triangular block of quartzite matrix that was studded with a myriad of cobaltite crystals that hasve been compleyely replaced by smolyaninovite with greenish cobaltaustinite and some minor lavendulan instead repalcing the cobaltite with groups of erythrite crystals in the fracture lines in the matrix

Mineral Data
What's on the rock

Cobaltaustinite

Formula: 
CaCo(AsO4)(OH)
Strunz: 
8.BH.35
Crystal System: 
Orthorhombic
Hardness: 
4.5
Type Locality: 
Dome Rock Copper Mine, Boolcoomatta Reserve (Boolcoomata Station; Boolcoomatta), Olary Province, South Australia, Australia

Smolyaninovite

Formula: 
(Co,Ni,Mg,Ca)3(Fe3+,Al)2(AsO4)4·11H2O
Strunz: 
8.CH.55
Crystal System: 
Orthorhombic
Hardness: 
2.0
Colour: 
Yellow
Type Locality: 
Khovu-Aksy Ni-Co deposit, Tuva Republic, Eastern-Siberian Region, Russia

Erythrite

Formula: 
Co3(AsO4)2·8H2O
Strunz: 
8.CE.40
Hardness: 
1.5 - 2.5
Type Locality: 
Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany
Earthstones Australia

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