Chromite and Diaspore Physical Properties

Chromite

Diaspore

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1 Physical Properties

1.1 Tenacity

Brittle

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.5-4.83.30-3.40

1 7.18

1.5 Fracture

Uneven

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

None, parting may develop along {111}

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

5.56.5-7

2 10

1.8 Chemical Composition

Fe++Cr2O4

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Chromite and Diaspore Chemical Formula

While comparing Chromite and Diaspore 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 Diaspore chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Chromite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Chromite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.