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Andradite Diopside Epidote & Biotite

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PFK659875

Andradite Diopside Epidote & Biotite

Description Tabs

Description
Locality: 
Marki Khel, Khogyani District, Nangarhar Province, Afghanistan
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 2.8 × 2.2 cm
Description

Excellent combo miniature with sharp & lustrous, dark-brown, dodecahedral crystals of andradite with green crystals of diopside, gemmy light green crystals of epidote and black to green, textbook crystals of biotite on metamorphic skarn rock!

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

Diopside

Formula: 
CaMgSi2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.5
Streak: 
white

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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Start 11 Feb 13:00
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Shipping Information

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

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