Smoky Quartz and Chromite Physical Properties

Smoky Quartz

Chromite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.654.5-4.8

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

Uneven

1.6 Cleavage

{0110} Indistinct

None, parting may develop along {111}

1.7 Mohs Hardness

75.5

2 10

1.8 Chemical Composition

SiO₂

Fe++Cr2O4

Smoky Quartz and Chromite Chemical Formula

While comparing Smoky Quartz and Chromite 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 Smoky Quartz and Chromite chemical formula.

Chemical formula of Smoky Quartz- SiO₂
Chemical formula of Chromite- Fe++Cr2O4

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Smoky Quartz and Chromite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Smoky Quartz and Chromite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smoky Quartz and Chromite Optical Properties during the identification of gemstone. Specific gravity of Smoky Quartz is 4.5-4.8 whereas that of Chromite is 4.5-4.8.