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Nepheline
Nepheline

Emerald
Emerald



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Nepheline
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Emerald

Nepheline and Emerald Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Hard
1.4 Specific Gravity
2.55-2.652.67-2.78
Amber
1 7.18
1.5 Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
[1010] Poor
Imperfect on the [0001]
1.7 Mohs Hardness
5-67.5-8
Amber
2 10
1.8 Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Be3Al2SiO6

Nepheline and Emerald Chemical Formula

While comparing Nepheline and Emerald 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 Emerald chemical formula.

  • Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
  • Chemical formula of Emerald- Be3Al2SiO6

Nepheline and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Emerald Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.67-2.78 whereas that of Emerald is 2.67-2.78.