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Lawsonite and Neptunite Physical Properties


Neptunite and Lawsonite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.09   
3.19-3.23   

Fracture
White, Yellow, Pale blue, Brittle, Uneven   
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle   

Cleavage
Perfect on {100} and {010}, imperfect on {101}   
{110} good   

Mohs Hardness
8   
5-6   

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

Optical Properties >>
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Lawsonite and Neptunite Chemical Formula

While comparing Lawsonite 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 Lawsonite and Neptunite chemical formula.

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Lawsonite and Neptunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lawsonite and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lawsonite and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Lawsonite is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.

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