Coral and Blue John Physical Properties

Coral and Blue John Chemical Formula

While comparing Coral and Blue John 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 Coral and Blue John chemical formula.

• Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.
• Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Coral and Blue John Specific Gravity

Another important criteria for qualitative analysis of gemstones is Coral and Blue John Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Coral and Blue John Optical Properties during the identification of gemstone. Specific gravity of Coral is 3.00-3.25 whereas that of Blue John is 3.00-3.25.