Chromite and Nephrite Physical Properties

Chromite

Nephrite

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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

4.5-4.82.90-3.10

1 7.18

1.5 Fracture

Uneven

Splintery, Granular, Splintery, Granular, Gemstones (2009)

1.6 Cleavage

None, parting may develop along {111}

Not Available

1.7 Mohs Hardness

5.56-6.5

2 10

1.8 Chemical Composition

Fe++Cr2O4

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Chromite and Nephrite Chemical Formula

While comparing Chromite and Nephrite 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 Nephrite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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Chromite and Nephrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.