Calcite and Blue John Physical Properties

Calcite and Blue John Chemical Formula

While comparing Calcite 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 Calcite and Blue John chemical formula.

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

Calcite and Blue John Specific Gravity

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