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Ktenasite Gypsum & Schulenbergite

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AST1016767

Ktenasite Gypsum & Schulenbergite

Type Locality

Description Tabs

Description
Locality: 
Kamariza Mines, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
12 × 5 × 5 cm
Description

Platy green ktenasite crystals with gypsum, schulenbergite and other minerals on marble matrix. Very rich in ktenasite specimen with nice overall display, from an old find at Lavrion mines.

Mineral Data
What's on the rock

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

Gypsum

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

Schulenbergite

Formula: 
(Cu,Zn)7(SO4,CO3)2(OH)10·3H2O
Strunz: 
7.DD.80
Crystal System: 
Trigonal
Hardness: 
2.0
Type Locality: 
Glücksrad Mine, Oberschulenberg, Bockswies veins, Clausthal-Zellerfeld, Harz, Lower Saxony, Germany

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