Sapphirine and Star Ruby Physical Properties

Sapphirine and Star Ruby Chemical Formula

While comparing Sapphirine 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 Sapphirine and Star Ruby chemical formula.

• Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Sapphirine and Star Ruby Specific Gravity

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