Chromite and Andalusite Physical Properties

Chromite

Andalusite

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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

4.5-4.83.05-3.21

1 7.18

1.5 Fracture

Uneven

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

None, parting may develop along {111}

Good on {110}, poor on {100}

1.7 Mohs Hardness

5.57.5

2 10

1.8 Chemical Composition

Fe++Cr2O4

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Chromite and Andalusite Chemical Formula

While comparing Chromite and Andalusite 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 Andalusite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Chromite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.