Blue John and Vesuvianite Idocrase Physical Properties

Blue John and Vesuvianite Idocrase Chemical Formula

While comparing Blue John and Vesuvianite Idocrase 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 Blue John and Vesuvianite Idocrase chemical formula.

• Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)
• Chemical formula of Vesuvianite Idocrase- Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.

Blue John and Vesuvianite Idocrase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Blue John and Vesuvianite Idocrase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Vesuvianite Idocrase Optical Properties during the identification of gemstone. Specific gravity of Blue John is 3.25-3.50 whereas that of Vesuvianite Idocrase is 3.25-3.50.