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Sylvite
Sylvite

Pargasite
Pargasite



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Sylvite
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Pargasite

Sylvite and Pargasite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
1.993
Uneven
Perfect on [100], [010], [001]
2.5
KCl
 
-
-
-
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)

Sylvite and Pargasite Chemical Formula

While comparing Sylvite 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 Sylvite and Pargasite chemical formula.

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Sylvite and Pargasite Specific Gravity

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