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Sylvite
Sylvite

Neptunite
Neptunite



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Sylvite
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Neptunite

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

Sylvite and Neptunite Chemical Formula

While comparing Sylvite 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 Sylvite and Neptunite chemical formula.

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Sylvite and Neptunite Specific Gravity

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