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Devilline & Gypsum

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PFK726779

Devilline & Gypsum

Classic Locality

Description Tabs

Description
Locality: 
Jean Baptiste Mine, Kamariza, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
14.9 × 10 × 7.5 cm
Description

An old and excellent, well-sized and rich example of blue devilline on contrasting white matrix, associated with crystals of gypsum. A classic rarity from Lavrion.

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.

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