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Fleischerite Thaumasite & Germanite

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BCK612853

Fleischerite Thaumasite & Germanite

Type Locality

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 0.8 × 1.3 cm
Description

You are bidding on a small sample with rich, fibrous mats of fleischerite filling cavities in germanite/tennantite. A large, striated colorless crystal was noted in a vug and went sent in for analysis it turned out to be thaumasite. The fleischerite was also confirmed during this testing. Confirmed by PXRD and EDS. Formely from the Will Frech and Fred DeVito collections. Extremely rare, confirmed sample with fleischerite on matrix!

Mineral Data
What's on the rock

Fleischerite

Formula: 
Pb3Ge(SO4)2(OH)6·3H2O
Strunz: 
7.DF.25
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Thaumasite

Formula: 
Ca3(SO4)[Si(OH)6](CO3)·12H2O
Strunz: 
7.DG.15
Hardness: 
3.5
Streak: 
White
Type Locality: 
Bjelke Mines, Åreskutan, Åre, Jämtland, Sweden

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

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