Chromite and Thulite Physical Properties

Chromite

Thulite

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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

4.5-4.83.1

1 7.18

1.5 Fracture

Uneven

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None, parting may develop along {111}

Perfect {010} imperfect {100}

1.7 Mohs Hardness

5.56-7

2 10

1.8 Chemical Composition

Fe++Cr2O4

Ca₂Al₃(SiO₄)₃(OH)

Chromite and Thulite Chemical Formula

While comparing Chromite and Thulite 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 Thulite chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Chromite and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Thulite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 3.1 whereas that of Thulite is 3.1.