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Taaffeite
Taaffeite

Nepheline
Nepheline



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Taaffeite
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Taaffeite and Nepheline 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
3.60-3.61
2.55-2.65
1.5 Fracture
Conchoidal
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
Imperfect/fair/absent
[1010] Poor
1.7 Mohs Hardness
8-8.5
5-6
1.8 Chemical Composition
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Taaffeite and Nepheline Chemical Formula

While comparing Taaffeite 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 Taaffeite and Nepheline chemical formula.

  • Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Taaffeite and Nepheline Specific Gravity

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