Phlogopite and Bytownite Physical Properties

Phlogopite and Bytownite Chemical Formula

While comparing Phlogopite and Bytownite 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 Phlogopite and Bytownite chemical formula.

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• Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Phlogopite and Bytownite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.