Star Ruby and Ametrine Physical Properties

Star Ruby and Ametrine Chemical Formula

While comparing Star Ruby and Ametrine 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 Star Ruby and Ametrine chemical formula.

• Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Ametrine- SiO₂

Star Ruby and Ametrine Specific Gravity

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