Star Sapphire and Spinel Physical Properties

Star Sapphire and Spinel Chemical Formula

While comparing Star Sapphire and Spinel 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 Spinel chemical formula.

• Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
• Chemical formula of Spinel- MgAl₂O₄

Star Sapphire and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Spinel Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 3.64-3.66 whereas that of Spinel is 3.64-3.66.