Aragonite and Chromite Physical Properties

Aragonite

Chromite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Dilute acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.964.5-4.8

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Uneven

1.6 Cleavage

Distinct on {010}, imperfect {110} and {011}

None, parting may develop along {111}

1.7 Mohs Hardness

3.5-45.5

2 10

1.8 Chemical Composition

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Fe++Cr2O4

Aragonite and Chromite Chemical Formula

While comparing Aragonite and Chromite 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 Aragonite and Chromite chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Chromite- Fe++Cr2O4

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Aragonite and Chromite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Chromite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Chromite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 4.5-4.8 whereas that of Chromite is 4.5-4.8.