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Jet
Jet

Afghanite
Afghanite



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Jet
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Afghanite

Jet and Afghanite Physical Properties

Jet
Jet
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.19-1.35
ConchoidalWalter Schumann
None
2.5-4
C
 
-
-
-
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)

Jet and Afghanite Chemical Formula

While comparing Jet and Afghanite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Jet and Afghanite chemical formula.

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Jet and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jet and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jet Vs Afghanite during the identification of gemstone. Specific gravity of Jet is whereas that of Afghanite is .