Apatite and Phlogopite Physical Properties

Apatite and Phlogopite Chemical Formula

While comparing Apatite and Phlogopite 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 Apatite and Phlogopite chemical formula.

• Chemical formula of Apatite- Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
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Apatite and Phlogopite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apatite and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apatite and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Apatite is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.