Chromite and Franklinite Physical Properties

Chromite

Franklinite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.5-4.85.05-5.22

1 7.18

1.5 Fracture

Uneven

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)

1.6 Cleavage

None, parting may develop along {111}

None

1.7 Mohs Hardness

5.55.5-6

2 10

1.8 Chemical Composition

Fe++Cr2O4

(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Chromite and Franklinite Chemical Formula

While comparing Chromite and Franklinite 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 Franklinite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Compare Brown Gemstones

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Chromite and Franklinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Franklinite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 5.05-5.22 whereas that of Franklinite is 5.05-5.22.