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Chromite
Chromite
☒

Afghanite
Afghanite
☒



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Chromite
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
4.5-4.8
Uneven
None, parting may develop along {111}
5.5
Fe++Cr2O4
 
-
-
-
2.55-2.65
Conchoidal
Perfect {10 1 0}
5.5-6
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Compare Brown Gemstones

Brown Gemstones

Jet lignite
Jet lignite
Iddingsite
Iddingsite
Petrified Wood
Petrified Wood
Afghanite
Kutnohorite
Afghanite Vs Kutnohorite
Afghanite
Mottramite
Afghanite Vs Mottramite
Afghanite
Pyrrhotite
Afghanite Vs Pyrrhotite

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