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Ktenasite & Zincaluminite

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SKI714033

Ktenasite & Zincaluminite

Description Tabs

Description
Locality: 
Genna Zinc Smelter, Letmathe, North Rhine - Westphalia, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.4 × 1.8 cm
Description

A nice combination of green-blue Ktenasite and white Zincaluminite from Genna zinc smelter. The plant was built in 1886 to process zinc ores mined in the Iserlohn - Letmathe area.

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

Zincaluminite

Formula: 
Zn6Al6(SO4)2(OH)16 · 5H2O
Hardness: 
2.5 - 3
Colour: 
White, bluish-white, pale blue; colourless in transmitted light.
Type Locality: 
Hilarion Mine, Lavrion, Attica, Greece

Seller Information

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