Apophyllite KF and Star Ruby Physical Properties

Apophyllite KF and Star Ruby Chemical Formula

While comparing Apophyllite KF and Star Ruby 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 KF and Star Ruby chemical formula.

• Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)
• Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Apophyllite KF and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.