Ruby and Petoskey Stone Physical Properties

Ruby and Petoskey Stone Chemical Formula

While comparing Ruby and Petoskey Stone 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 Petoskey Stone chemical formula.

• Chemical formula of Ruby- Al ₂ O ₃
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Ruby and Petoskey Stone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Petoskey Stone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Petoskey Stone Optical Properties during the identification of gemstone. Specific gravity of Ruby is Not Available whereas that of Petoskey Stone is Not Available.