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Prehnite & Epidote

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MGR632114

Prehnite & Epidote

Description Tabs

Description
Locality: 
Imilchil, Errachidia Province, Drâa-Tafilalet Region, Morocco
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 4.8 × 3.2 cm
Description

The Prehnite sphere is 28mm across, the crystal is completely free-standing and complete all around. The faces show wonderful texture, the color is light green. The matrix consits of tiny epidote-crystals. Really a very eye-catching and aesthetic specimen. No significant damages to report.

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...