Painite and Nepheline Physical Properties

Painite

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

4.00-4.032.55-2.65

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Not Available

[1010] Poor

1.7 Mohs Hardness

7.5-85-6

2 10

1.8 Chemical Composition

CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Painite and Nepheline Chemical Formula

While comparing Painite 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 Painite and Nepheline chemical formula.

Chemical formula of Painite- CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

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Painite and Nepheline Specific Gravity

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