Chromite and Tourmaline Physical Properties

Chromite

Tourmaline

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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

4.5-4.82.85-3.35

1 7.18

1.5 Fracture

Uneven

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None, parting may develop along {111}

Indistinct

1.7 Mohs Hardness

5.57-7.5

2 10

1.8 Chemical Composition

Fe++Cr2O4

Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

Chromite and Tourmaline Chemical Formula

While comparing Chromite and Tourmaline 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 Tourmaline chemical formula.

Chemical formula of Chromite- Fe++Cr2O4
Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.

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Chromite and Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chromite and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Chromite is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.