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Neptunite and Sylvite Physical Properties


Sylvite and Neptunite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
3.19-3.23   
1.993   

Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle   
Uneven, Brittle   

Cleavage
{110} good   
Perfect on [100], [010], [001]   

Mohs Hardness
5-6   
2.5   

Chemical Composition
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael O’Donoghue , Gems, Sixth Edition (2006)   
Not Available   

Optical Properties >>
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Neptunite and Sylvite Chemical Formula

While comparing Neptunite and Sylvite 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 Neptunite and Sylvite chemical formula.

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Neptunite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Neptunite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Neptunite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Neptunite is 1.993 whereas that of Sylvite is 1.993.

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