Phlogopite and Rossmanite Physical Properties

Phlogopite and Rossmanite Chemical Formula

While comparing Phlogopite and Rossmanite 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 Rossmanite chemical formula.

• Chemical formula of Phlogopite- KMg3(Si3Al)O10(F,OH)2
• Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Phlogopite and Rossmanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Rossmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Rossmanite Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 3 whereas that of Rossmanite is 3.