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Erythrite With Cobaltian Mansfieldite Heterogenite & Smolyaninovite

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RHT790106

Erythrite With Cobaltian Mansfieldite Heterogenite & Smolyaninovite

Rare Mineral

Description Tabs

Description
Locality: 
Mount Cobalt Mine, Selwyn District, Cloncurry Shire, Queensland, Australia
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 4 cm
Weight: 
92.00gr
Description

Very nice, super-glossy purple-pink erythrite crystal sheaves with crusts of very rare brownish cobaltian mansfieldite (only known from two localities worldwide), black heterogenite and beige smolyaninovite (also quite rare - only 13 known localities worldwide).

Different light used for photographs. Colors and luster of the erythrite much better in nature.

Mineral Data
What's on the rock

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

Cobaltian Mansfieldite

Variety Of: 

Mansfieldite

Formula: 
AlAsO4·2H2O
Strunz: 
8.CD.10
Hardness: 
3.5 - 4.0
Hardness: 
0.0

Heterogenite

Formula: 
CoO(OH)
Strunz: 
4.FE.20
Crystal System: 
Trigonal
Hardness: 
3.0 - 5.0
Type Locality: 
Wolfgang Maaßen Mine field, Schneeberg District, Erzgebirge, Saxony, Germany

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