Chromite and Anhydrite Physical Properties

Chromite

Anhydrite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.5-4.82.90-2.98

1 7.18

1.5 Fracture

Uneven

Conchoidal, Brittle, Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

None, parting may develop along {111}

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

1.7 Mohs Hardness

5.53.5

2 10

1.8 Chemical Composition

Fe++Cr2O4

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Chromite and Anhydrite Chemical Formula

While comparing Chromite and Anhydrite 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 Anhydrite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Chromite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.