Blue John and Rutile Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Insoluble in acids
Durability
Not Available
Not Available
Specific Gravity
3.00-3.25
4.20-4.30
Fracture
Not Available
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Not Available
{110} good, 100 moderate, parting on {092} and {011}
Mohs Hardness
Not Available
6-6.5
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Blue John and Rutile Chemical Formula
While comparing Blue John and Rutile 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 Rutile chemical formula.
- Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Blue John and Rutile Specific Gravity
Another important criteria for qualitative analysis of gemstones is Blue John and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Rutile Optical Properties during the identification of gemstone. Specific gravity of Blue John is 4.20-4.30 whereas that of Rutile is 4.20-4.30.