Chromite and Austinite Physical Properties

Chromite

Austinite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Easily soluble in cold dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

4.5-4.84.12

1 7.18

1.5 Fracture

Uneven

Brittle, Uneven, Brittle, Uneven

1.6 Cleavage

None, parting may develop along {111}

Good in two directions parallel to the prism faces {110}

1.7 Mohs Hardness

5.54-4.5

2 10

1.8 Chemical Composition

Fe++Cr2O4

CaZn(AsO4)(OH)

Chromite and Austinite Chemical Formula

While comparing Chromite and Austinite 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 Austinite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Austinite- CaZn(AsO4)(OH)

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Chromite and Austinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Austinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Austinite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 4.12 whereas that of Austinite is 4.12.