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Spinel With Hydroxylclinohumite & Dolomite

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KRM629827

Spinel With Hydroxylclinohumite & Dolomite

Description Tabs

Description
Locality: 
Sar-e Sang, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 8 × 5.3 cm
Description

A classic well terminated black spinel crystal incombination with hydroxyleclinohumite hosts to dolomite matrix, A very good nice combination specimen.

Mineral Data
What's on the rock

Spinel

Formula: 
MgAl2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
7.5 - 8.0

Hydroxylclinohumite

Formula: 
Mg9(SiO4)4(OH)2
Strunz: 
9.AF.55
Crystal System: 
Monoclinic
Hardness: 
6.5
Streak: 
White
Type Locality: 
Zelentsovskaya Pit, Kusinsk Fe-Ti-V-deposit, Zlatoust, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

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