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Helmutwinklerite

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DLN151069

Helmutwinklerite

Type Locality

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Size Range: 
Micromount (under 1cm)
Size: 
0.3 × 0.2 × 0.2 cm
Description

Extremely rare yellowish-green aggregates of helmutwinklerite from the type and most important locality of the only two localities known for the species, in enargite+germanite matrix. This sample has the typical morphology and color for the species.
Don't miss the opportunity to get such a sought after mineral from Tsumeb !. Note.- Shipping costs are intended for Certified Mail. If you prefer the cheaper ordinary mail, please ask.

Mineral Data
What's on the rock

Helmutwinklerite

Formula: 
Pb(Zn,Cu)2(AsO4)2·2H2O
Strunz: 
8.CG.20
Crystal System: 
Triclinic
Hardness: 
4.5
Streak: 
White
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia
DLN Minerals

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