Selenite and Phlogopite Physical Properties

Selenite and Phlogopite Chemical Formula

While comparing Selenite 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 Selenite and Phlogopite chemical formula.

• Chemical formula of Selenite- CaSO4·2H2O
• Chemical formula of Phlogopite- KMg3(Si3Al)O10(F,OH)2

Selenite and Phlogopite Specific Gravity

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