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Ktenasite & Gypsum

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BCK738852

Ktenasite & Gypsum

Kay Robertson collection

Description Tabs

Description
Locality: 
Glomsrudkollen Mines, Åmot, Modum, Viken, Norway
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 3.7 × 2 cm
Description

You are bidding on small miniature sample with nice crystals of ktenasite in vugs with gypsum crystals from this obscure Norwegian zinc mine. 

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.

Seller Information

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