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Chromite
Chromite

Colemanite
Colemanite



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Chromite
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Colemanite

Chromite and Colemanite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

4.5-4.82.40-2.42
1 7.18
👆🏻

Fracture

Uneven
-

Cleavage

None, parting may develop along {111}
{010} Perfect, {001} Distinct

Mohs Hardness

5.54.5
2 10
👆🏻

Chemical Composition

Fe++Cr2O4
Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Chromite and Colemanite Chemical Formula

While comparing Chromite and Colemanite 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 Colemanite chemical formula.

  • Chemical formula of Chromite- Fe++Cr2O4
  • Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Chromite and Colemanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Colemanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Colemanite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 2.40-2.42 whereas that of Colemanite is 2.40-2.42.