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Compreignacite & Gypsum

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MTT123831

Compreignacite & Gypsum

Rare Mineral

Description Tabs

Description
Locality: 
Ronneburg Uranium Deposit, Thuringia, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.9 × 0.3 cm
Largest Crystal: 
0.20cm
Description

A specimen of very rare, radioactive compreignacite with associated gypsum balls. I have never seen another specimen for sale or even on someone's website. This is the only one I have. Admittedly, this specimen hasn't been analysed, but it is from Stephan Wolfsried, I got this specimen labelled as Compreignacite. This specimen will come with my label. Excellent species! Pointed out with a red ring on one of the photos.

Mineral Data
What's on the rock

Compreignacite

Formula: 
K2(UO2)6O4(OH)6·7H2O
Strunz: 
4.GB.05
Crystal System: 
Orthorhombic
Hardness: 
0.0
Type Locality: 
Margnac Mine, Compreignac, Haute-Vienne, Limousin, France

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

No returns accepted, sorry. Buyers must send payment within 7 days, otherwise the bid for purchase will be discounted and classed as void.

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