Smaragdite and Dravite Physical Properties

Smaragdite and Dravite Chemical Formula

While comparing Smaragdite and Dravite 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 Smaragdite and Dravite chemical formula.

• Chemical formula of Smaragdite- NaCa2(Al,Fe)3Si6O18(OH)4
• Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Smaragdite and Dravite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Smaragdite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smaragdite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Smaragdite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.