Phlogopite and Topazolite Physical Properties

Phlogopite and Topazolite Chemical Formula

While comparing Phlogopite and Topazolite 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 Topazolite chemical formula.

• Chemical formula of Phlogopite- KMg3(Si3Al)O10(F,OH)2
• Chemical formula of Topazolite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Phlogopite and Topazolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phlogopite and Topazolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Topazolite Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 3.70-4.10 whereas that of Topazolite is 3.70-4.10.