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Jet
Jet

Neptunite
Neptunite



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Jet
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Neptunite

Jet and Neptunite 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
 
Brittle
-
-
3.19-3.23
Conchoidal
{110} good
5-6
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael O’Donoghue , Gems, Sixth Edition (2006)

Jet and Neptunite Chemical Formula

While comparing Jet and Neptunite 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 Neptunite chemical formula.

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Jet and Neptunite Specific Gravity

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