Star Sapphire and Bytownite Physical Properties

Star Sapphire and Bytownite Chemical Formula

While comparing Star Sapphire and Bytownite 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 Sapphire and Bytownite chemical formula.

• Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
• Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Star Sapphire and Bytownite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.