Chromite and Topaz Physical Properties

Chromite

Topaz

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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

4.5-4.83.49-3.57

1 7.18

1.5 Fracture

Uneven

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

None, parting may develop along {111}

[001] Perfect

1.7 Mohs Hardness

5.58

2 10

1.8 Chemical Composition

Fe++Cr2O4

Al₂SiO₄(F,OH)₂

Chromite and Topaz Chemical Formula

While comparing Chromite and Topaz 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 Topaz chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Topaz- Al₂SiO₄(F,OH)₂

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Chromite and Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Chromite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.