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Bartelkeite & Krieselite

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JYJ967146

Bartelkeite & Krieselite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 2.8 × 1.9 cm
Description

Exceptional bartelkeite in germanite chalcocite cavity with some Ge bearing segnitite, smithsonite and an unknown Fe3Ge-oxide phase that is yet undescribed. 

SEM-EDS confirmed. 

Mineral Data
What's on the rock

Bartelkeite

Formula: 
Pb(Fe2+Ge)[Ge2O7](OH)2·H2O
Strunz: 
9.J0.10
Crystal System: 
Monoclinic
Hardness: 
4.0
Streak: 
White
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Krieselite

Formula: 
(Al,Ga)2(GeO4)(OH)2
Strunz: 
9.AF.20
Hardness: 
5.5 - 6.5
Streak: 
White
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Buy Now price

$2000
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Start 21 Dec 18:00
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Shipping Information

Postage Area Price
Germany: Insured parcel 5,50€
5.50
International Warenpost tracked, not insured max 1 kg - 10€
10
EU insured parcel - 14€
14
Worldwide < 5000g insured parcel (UPS/TNT/DHL) 50€
50

Bid History

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