Dravite and Anorthite Physical Properties

Dravite and Anorthite Chemical Formula

While comparing Dravite and Anorthite 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 Dravite and Anorthite chemical formula.

• Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
• Chemical formula of Anorthite- CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Dravite and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.77 whereas that of Anorthite is 2.77.