Nepheline and Rosasite Physical Properties

Nepheline

Rosasite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Effervesces in cold

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.654-4.2

1 7.18

1.5 Fracture

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

Splintery

1.6 Cleavage

[1010] Poor

Perfect on {100} and {010}

1.7 Mohs Hardness

5-64

2 10

1.8 Chemical Composition

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

Not Available

Nepheline and Rosasite Chemical Formula

While comparing Nepheline and Rosasite 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 Rosasite chemical formula.

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

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Nepheline and Rosasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Rosasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Rosasite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 4-4.2 whereas that of Rosasite is 4-4.2.