Crocoite and Chromite Physical Properties

Crocoite

Chromite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.90-6.104.5-4.8

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

Uneven

1.6 Cleavage

{110} Distinct, {001} Indistinct, {100} Indistinct

None, parting may develop along {111}

1.7 Mohs Hardness

2.5-35.5

2 10

1.8 Chemical Composition

PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Fe++Cr2O4

Crocoite and Chromite Chemical Formula

While comparing Crocoite 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 Crocoite and Chromite chemical formula.

Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Chromite- Fe++Cr2O4

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Crocoite and Chromite Specific Gravity

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