Nepheline and Aquamarine Physical Properties

Nepheline

Aquamarine

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.652.66-2.80

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Not Available

1.6 Cleavage

[1010] Poor

3,1 basal

1.7 Mohs Hardness

5-67.5-8

2 10

1.8 Chemical Composition

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Be₃Al₂SiO₆

Nepheline and Aquamarine Chemical Formula

While comparing Nepheline and Aquamarine 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 Aquamarine chemical formula.

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

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Nepheline and Aquamarine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Aquamarine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Aquamarine Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.66-2.80 whereas that of Aquamarine is 2.66-2.80.