Nepheline and Narsarsukite Physical Properties

Nepheline

Narsarsukite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.65

2.72-2.83

1.5 Fracture

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

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

[1010] Poor

Good on {100} and {110}

1.7 Mohs Hardness

5-6

6-7

1.8 Chemical Composition

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

Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

Nepheline and Narsarsukite Chemical Formula

While comparing Nepheline and Narsarsukite 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 Narsarsukite chemical formula.

Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Chemical formula of Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

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Nepheline and Narsarsukite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Narsarsukite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Narsarsukite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.72-2.83 whereas that of Narsarsukite is 2.72-2.83.