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Opal and Nepheline Physical Properties


Nepheline and Opal Physical Properties


Physical Properties

Tenacity
BrittleWalter Schumann   
Not Available   

Solubility
hot salt water   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.98-2.25   
2.55-2.65   

Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle   
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   

Cleavage
None   
[1010] Poor   

Mohs Hardness
5-6.5   
5-6   

Chemical Composition
SiO2 · nH2O   
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.   

Optical Properties >>
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Opal and Nepheline Chemical Formula

While comparing Opal and Nepheline 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 Opal and Nepheline chemical formula.

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Opal and Nepheline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Opal and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Opal is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.

Semi Precious

Semi Precious


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