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Andradite Epidote & Biotite

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PFK629755

Andradite Epidote & Biotite

Description Tabs

Description
Locality: 
Marki Khel, Khogyani District, Nangarhar Province, Afghanistan
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 3.3 × 2.2 cm
Description

Lustrous and sharp, dodecahedral crystals of brown andradite with gem crystals of green epidote and almost black crystals of biotite.

Mineral Data
What's on the rock

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

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...

Biotite

Group Parent: 
Mica Group

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75
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Shipping Information

Postage Area Price
Greece
5
Europe
12
Rest of the World
14