Nepouite and Biotite Physical Properties

Nepouite and Biotite Chemical Formula

While comparing Nepouite and Biotite 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 Nepouite and Biotite chemical formula.

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• Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2

Nepouite and Biotite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepouite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepouite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Nepouite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.