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Nepheline and Amethyst Physical Properties


Amethyst and Nepheline Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
insoluble in common solvents   

Durability
Not Available   
Not Available   

Specific Gravity
2.55-2.65   
2.65   

Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
[1010] Poor   
Indiscernible   

Mohs Hardness
5-6   
7   

Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.   
SiO2   

Optical Properties >>
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Nepheline and Amethyst Chemical Formula

While comparing Nepheline and Amethyst 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 Nepheline and Amethyst chemical formula.

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Nepheline and Amethyst Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.65 whereas that of Amethyst is 2.65.

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Red Gemstones


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