Chromite and Nepheline Physical Properties

Chromite

Nepheline

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.5-4.82.55-2.65

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

None, parting may develop along {111}

[1010] Poor

1.7 Mohs Hardness

5.55-6

2 10

1.8 Chemical Composition

Fe++Cr2O4

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

Chromite and Nepheline Chemical Formula

While comparing Chromite 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 Chromite and Nepheline chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

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Chromite and Nepheline Specific Gravity

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