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Nepheline
Nepheline

Variscite
Variscite



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Nepheline
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Nepheline and Variscite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.55-2.65
2.42-2.58
1.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
1.6 Cleavage
[1010] Poor
[010] perfect
1.7 Mohs Hardness
5-6
4-5
1.8 Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
AlPO4 · 2(H2O)

Nepheline and Variscite Chemical Formula

While comparing Nepheline and Variscite 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 Variscite chemical formula.

  • Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
  • Chemical formula of Variscite- AlPO4 · 2(H2O)

Nepheline and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Variscite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.42-2.58 whereas that of Variscite is 2.42-2.58.