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Helmutwinklerite & Germanite

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Helmutwinklerite & Germanite

Type Locality

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 1.1 × 1.1 cm
Description

Very rare, colourless crystals (!) of Helmutwinklerite in a vug on Germanite

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

Germanite

Formula: 
Cu13Fe2Ge2S16
Strunz: 
2.CB.30
Crystal System: 
Isometric
Hardness: 
4.0
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

We want you to be pleased with your purchase. If for any reason you are not completely satisfied, you may exchange or credit your purchase. If a package is lost or damaged, please report the problem immediately.

Any questions or comments please email us at: [email protected]

Thank you for your bidding!