Smaragdite and Biotite Physical Properties

Smaragdite and Biotite Chemical Formula

While comparing Smaragdite and Biotite 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 Biotite chemical formula.

• Chemical formula of Smaragdite- NaCa2(Al,Fe)3Si6O18(OH)4
• Chemical formula of Biotite- K(Mg,Fe++)3[AlSi3O10(OH,F)2

Smaragdite and Biotite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Smaragdite and Biotite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smaragdite and Biotite Optical Properties during the identification of gemstone. Specific gravity of Smaragdite is 2.7-3.3 whereas that of Biotite is 2.7-3.3.