Afghanite and Epidote Physical Properties

Afghanite and Epidote Chemical Formula

While comparing Afghanite 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 Afghanite and Epidote chemical formula.

• Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
• Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Afghanite and Epidote Specific Gravity

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