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Devilline Gypsum & Ktenasite

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UMM761867

Devilline Gypsum & Ktenasite

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Description Tabs

Description
Locality: 
Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3 × 1.5 cm
Largest Crystal: 
0.10cm
Description

It`s a piece of gneise. on the surface are the minerals: Devilline (blue), Ktenasite (green) and Gypsum.

It comes from the "Letzte Hoffnung" vein, Uranus mine / Annaberg Buchholz / Saxony.

Mineral Data
What's on the rock

Devilline

Formula: 
CaCu4(SO4)2(OH)6·3H2O
Strunz: 
7.DD.30
Crystal System: 
Monoclinic
Hardness: 
2.5
Type Locality: 
Cornwall, England, UK

Gypsum

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

Ktenasite

Formula: 
Zn(Cu,Zn)4(SO4)2(OH)6·6H2O
Strunz: 
7.DD.20
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Type Locality: 
Jean Baptiste Mine, Kamariza Mines (Kamareza Mines), Agios Konstantinos [St Constantine] (Kamariza), Lavrion District Mines, Lavrion District (Laurion; Laurium), Attikí Prefecture (Attica; Attika), Greece

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Es gelten die allgemeinen Geschäftsbedingungen nach deutschem BGB.