Chromite and Hemimorphite Physical Properties

Chromite

Hemimorphite

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Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

4.5-4.83.30-3.50

1 7.18

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Fracture

Uneven

Uneven, ConchoidalWalter Schumann, Conchoidal

Cleavage

None, parting may develop along {111}

Perfect on {110}, poor on {101}, {001} rare

Mohs Hardness

5.55

2 10

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Chemical Composition

Fe++Cr2O4

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Chromite and Hemimorphite Chemical Formula

While comparing Chromite and Hemimorphite 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 Hemimorphite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Chromite Vs Jet lignite

Chromite and Hemimorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.