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Ktenasite Serpierite Zincaluminite & Willemite

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CLB575314

Ktenasite Serpierite Zincaluminite & Willemite

Classic Locality

Description Tabs

Description
Locality: 
Letmathe, Iserlohn, Sauerland, North Rhine - Westphalia, Germany
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.4 × 2.2 × 1.5 cm
Description

Fine specimen with secondary turquoise-colored ktenasite and blue serpierite (hard to distinguish) on colorless zincaluminite with colorless to orange willemite from the Genna zinc smelter slag locality.

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

Serpierite

Formula: 
Ca(Cu,Zn)4(SO4)2(OH)6·3H2O
Strunz: 
7.DD.30
Crystal System: 
Monoclinic
Hardness: 
2.0
Type Locality: 
Serpieri Mine, Kamariza Mines (Kamareza Mines), Agios Konstantinos [St Constantine] (Kamariza), Lavrion District Mines, Lavrion District (Laurion; Laurium), Attikí Prefecture (Attica; Attika), Greece

Willemite

Formula: 
Zn2SiO4
Strunz: 
9.AA.05
Hardness: 
5.5
Streak: 
White
Type Locality: 
Vieille Montagne (Altenberg; Kelmisberg), Moresnet, Kelmis, Plombières-Vieille Montagne District (Plombières-Altenberg), Verviers, Liège Province, Belgium

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