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Prehnite & Epidote

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MGR562107

Prehnite & Epidote

Description Tabs

Description
Locality: 
Djouga-Kolon, Bendougou, Bafoulabé Circle, Kayes Region, Mali
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.9 × 2.1 × 2.2 cm
Description

One isolated epidote crystal with one isolated complete sphere of prehnite! A second epidote crystal is intergrown rectangular to the bakside, as you can see on my second photo. Yes, the material is common, but this particular specimen shows both mineral in excellent quality and a the most aesthetic assemble. Undamaged.

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...