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Andradite & Biotite

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PFK629750

Andradite & Biotite

Description Tabs

Description
Locality: 
Marki Khel, Khogyani District, Nangarhar Province, Afghanistan
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.8 × 1.6 cm
Largest Crystal: 
2.30cm
Description

A main large crystal of brown andradite, very sharp with fine luster attached on a little bit of matrix that hosts dozens of little crystals of biotite. The base is also recrystallized but I am not sure whether this is floater or not. No damage.
 

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

Biotite

Group Parent: 
Mica Group

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65
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Shipping Information

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