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Devilline & Gypsum On Cobaltoan Dolomite

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SLN739659

Devilline & Gypsum On Cobaltoan Dolomite

Description Tabs

Description
Locality: 
Bou Beker, Touissit-Bou Beker District, Jerada Province, Oriental Region, Morocco
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
3.9 × 9.8 × 7.2 cm
Weight: 
218.00gr
Description

Aesthetic specimen from Morocco with a lot of turquoise devilline crystals free or reunited in spherical aggregates covered by glossy and transparent gypsum var selenite on crystallized cobaltoan dolomite

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.

Cobaltoan Dolomite

Variety Of: 

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Hardness: 
3.5 - 4.0
Formula: 
(Ca,Mg,Co)CO3
Hardness: 
0.0

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$12
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