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Coronadite & Tarbuttite

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Coronadite & Tarbuttite

Rare Mineral

Description Tabs

Description
Locality: 
Skorpion Mine, Rosh Pinah, Oranjemund, Karas Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
15 × 11 × 3.1 cm
Largest Crystal: 
1.00cm
Weight: 
742.00gr
Description

Beautiful light green Tarbuttite & black Coronadite  crystals on matrix. This specimen has been sawn at the bottom.

Mineral Data
What's on the rock

Coronadite

Formula: 
Pb(Mn64+Mn23+)O16
Strunz: 
4/D.08-70
Crystal System: 
Monoclinic
Hardness: 
4½ - 5
Colour: 
Dark gray, black
Type Locality: 
Horseshoe Mine, Coronado Mine, Coronado vein, Copper Plate Gulch, Copper Mountain District, Greenlee County, Arizona, USA
Isostructural with: 
Cryptomelane
Ferrihollandite
Hollandite
Manjiroite
Strontiomelane

Tarbuttite

Formula: 
Zn2(PO4)(OH)
Strunz: 
8.BB.35
Crystal System: 
Triclinic
Hardness: 
3.5
Streak: 
White
Type Locality: 
Kabwe Mine (Broken Hill Mine), Kabwe (Broken Hill), Kabwe District, Central Province, Zambia