Ruby and Realgar Physical Properties

Ruby and Realgar Chemical Formula

While comparing Ruby and Realgar 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 Ruby and Realgar chemical formula.

• Chemical formula of Ruby- Al ₂ O ₃
• Chemical formula of Realgar- AsSMichael O’Donoghue , Gems, Sixth Edition (2006)

Ruby and Realgar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Realgar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Realgar Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.56 whereas that of Realgar is 3.56.