Forsterite and Rubellite Physical Properties

Forsterite and Rubellite Chemical Formula

While comparing Forsterite and Rubellite 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 Forsterite and Rubellite chemical formula.

• Chemical formula of Forsterite- Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Rubellite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Forsterite and Rubellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Forsterite and Rubellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Rubellite Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 3.01-3.06 whereas that of Rubellite is 3.01-3.06.