Nepheline and Vesuvianite Physical Properties

Nepheline

Vesuvianite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Vesuvianite is virtually insolouble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.653.32-3.43

1 7.18

1.5 Fracture

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

Conchoidal, Brittle

1.6 Cleavage

[1010] Poor

Poor on {110} and {100} very poor on {001}

1.7 Mohs Hardness

5-66-7

2 10

1.8 Chemical Composition

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

Not Available

Nepheline and Vesuvianite Chemical Formula

While comparing Nepheline and Vesuvianite 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 Vesuvianite chemical formula.

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

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Nepheline and Vesuvianite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Vesuvianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Vesuvianite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 3.32-3.43 whereas that of Vesuvianite is 3.32-3.43.