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Cumengeite

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HEF1163724

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Description
Locality: 
Herzog Julius Smelter Slag Locality, Astfeld, Goslar, Lower Saxony, Germany
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.2 × 1.1 cm
Description

Cumengite ( IMA symbol Cge) is a very rare mineral belonging to the halide class, with the chemical composition Pb₂₁Cu₂₀Cl₄₂(OH)₄₀·6H₂O, making it a lead-copper hydroxy halide. Here, the mineral occurs in beautiful blue crystals together with kapellasite.
 

Mineral Data
What's on the rock

Cumengeite

Formula: 
Pb21Cu20Cl42(OH)40·6H2O
Strunz: 
3.DB.20
Crystal System: 
Tetragonal
Hardness: 
2.5
Streak: 
Sky-blue
Type Locality: 
Santa Rosalía (El Boleo), Boleo District, Mun. de Mulegé, Baja California Sur (BC Sur), Mexico

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Shipping Information

Postage Area Price
Germany : Insured parcel < 2000g 6 €
€6
Germany : Insured parcel > 2000g 9 €
€9
International <500g 10 €
€10
International > 500g < 1000g 18€
€18
USA 12€
€12
Worldwide < 5000g insured parcel 50€
€50
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Combined shipping it possible until next weight level is reached.

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[email protected]

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

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Accepted payment methods:  PayPal, wire transfer

Money back guarantee 14 days after purchase

 

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