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Jet
Jet

Pargasite
Pargasite



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Jet
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Pargasite

Jet and Pargasite 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
 
-
-
-
3.04-3.26
Splintery, Uneven
{110} perfect
5-6
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Jet and Pargasite Chemical Formula

While comparing Jet and Pargasite 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 Pargasite chemical formula.

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Jet and Pargasite Specific Gravity

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