Tortoiseshell and Nepheline Physical Properties

Tortoiseshell

Nepheline

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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

1.25-1.352.55-2.65

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

[1010] Poor

1.7 Mohs Hardness

Not Available5-6

2 10

1.8 Chemical Composition

Not Available

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

Tortoiseshell and Nepheline Chemical Formula

While comparing Tortoiseshell 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 Tortoiseshell and Nepheline chemical formula.

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

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Tortoiseshell and Nepheline Specific Gravity

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