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Rock Crystal
Rock Crystal

Nepheline
Nepheline



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Rock Crystal
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Nepheline

Rock Crystal and Nepheline Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.65
ConchoidalWalter Schumann
None
7
SiO 2Walter Schumann , Gemstones of the world (2001)
 
-
-
-
2.55-2.65
Subconchoidal, Conchoidal
[1010] Poor
5-6
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Rock Crystal and Nepheline Chemical Formula

While comparing Rock Crystal 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 Rock Crystal and Nepheline chemical formula.

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Rock Crystal and Nepheline Specific Gravity

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