Rubellite and Epidote Physical Properties

Rubellite and Epidote Chemical Formula

While comparing Rubellite and Epidote 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 Rubellite and Epidote chemical formula.

• 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.
• Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Rubellite and Epidote Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rubellite and Epidote Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Epidote Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 3.25-3.50 whereas that of Epidote is 3.25-3.50.