Afghanite and Painite Physical Properties

Afghanite and Painite Chemical Formula

While comparing Afghanite and Painite 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 Painite 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 Painite- CaZrBAl 9O 18Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Afghanite and Painite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Afghanite and Painite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Painite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 4.00-4.03 whereas that of Painite is 4.00-4.03.