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Chromite
Chromite

Hackmanite
Hackmanite



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Chromite
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Hackmanite

Chromite and Hackmanite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

4.5-4.82.27-2.33
1 7.18
👆🏻

Fracture

Uneven
-

Cleavage

None, parting may develop along {111}
Perfect

Mohs Hardness

5.55.5-6
2 10
👆🏻

Chemical Composition

Fe++Cr2O4
Na 8Al 6Si 6O 24Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Chromite and Hackmanite Chemical Formula

While comparing Chromite and Hackmanite 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 Hackmanite chemical formula.

  • Chemical formula of Chromite- Fe++Cr2O4
  • Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Chromite and Hackmanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Hackmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Hackmanite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 2.27-2.33 whereas that of Hackmanite is 2.27-2.33.