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Prehnite & Epidote

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MGR822814

Prehnite & Epidote

Description Tabs

Description
Locality: 
Diakon Commune, Cercle de Bafoulabé, Kayes Region, Mali
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 4.5 × 2.5 cm
Description

Yes - prehnite with epidote from Mali is common, but this piece stands out of the crowd: Because of the crazy assemble and because of the fantastic quality of both minerals. Usually the epidote is etched and dull; not so here - all these crystals are sharp, end-pointed, double terminated and on highest possible luster. Also the prehnite is in exceptional quality - it shows excellent translucency without cracks or inclusions. The whole assemble looks like a sculpture, you can look at it 360°, but there is no less attractive angle.In peefect condition damage-wise.

Mineral Data
What's on the rock

Prehnite

Formula: 
Ca2Al2Si3O10(OH)2
Strunz: 
9.DP.20
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Karoo dolerites, Cradock, Chris Hani District, Eastern Cape Province, South Africa

Epidote

Formula: 
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05a
Crystal System: 
Monoclinic
Hardness: 
6.0
Streak: 
Colorless
Type Locality: 
Bourg d'Oisans, Isère, Rhône-Alpes, France...