Biotite and Imperial Topaz Physical Properties

Biotite

Imperial Topaz

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.7-3.3

Uneven, Even

Perfect on the {001}

2.5-3.0

K(Mg,Fe++)3[AlSi3O10(OH,F)2

3.49-3.57

Uneven

None

Al2SiO4(F,OH)2

Biotite and Imperial Topaz Chemical Formula

While comparing Biotite and Imperial 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 Biotite and Imperial Topaz chemical formula.

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Biotite and Imperial Topaz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Biotite and Imperial Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Biotite Vs Imperial Topaz during the identification of gemstone. Specific gravity of Biotite is whereas that of Imperial Topaz is .