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Hydrozincite Hemimorphite & Cryptomelane

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PJM42045

Hydrozincite Hemimorphite & Cryptomelane

Description Tabs

Description
Locality: 
Evelyn Mine, Pine Creek, Victoria-Daly Region, Northern Territory, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.2 × 5.3 × 4.9 cm
Description

An interesting specimen with tree separate cavities , each has hemimorphite, the first is lined with hydrozincite, the second white botyroidal smithsonite and third black cryptomelane. Each cavity is quite distinct.

Mineral Data
What's on the rock

Hydrozincite

Formula: 
Zn5(CO3)2(OH)6
Strunz: 
5.BA.15
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Bad Bleiberg, Bleiberg District, Gailtaler Alpen & Karnische Alpen, Carinthia, Austria

Hemimorphite

Formula: 
Zn4Si2O7(OH)2·H2O
Strunz: 
9.BD.10
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Băiţa Mining District (Baita Bihor; Rézbánya), Nucet, Bihor Co., Romania

Cryptomelane

Formula: 
K(Mn4+7Mn3+)O16
Strunz: 
4.DK.05a
Crystal System: 
Tetragonal
Hardness: 
5.0 - 6.5
Type Locality: 
Tombstone, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Earthstones Australia

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