Ruby and Cobaltite Physical Properties

Ruby and Cobaltite Chemical Formula

While comparing Ruby and Cobaltite 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 Cobaltite chemical formula.

• Chemical formula of Ruby- Al ₂ O ₃
• Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

Ruby and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 6.3 whereas that of Cobaltite is 6.3.