Apophyllite and Afghanite Physical Properties

Apophyllite and Afghanite Chemical Formula

While comparing Apophyllite and Afghanite 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 Apophyllite and Afghanite chemical formula.

• Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
• Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)

Apophyllite and Afghanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.