Kyanite Cyprine and Sapphire Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.55-3.70
  
3.95-4.03
  
Fracture
Gemstones (2009)
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Not Available
  
None, but may exhibit parting
  
Mohs Hardness
4-7
  
9
  
Chemical Composition
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
  
Al 2 O 3
  
Kyanite Cyprine and Sapphire Chemical Formula
While comparing Kyanite Cyprine and Sapphire 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 Kyanite Cyprine and Sapphire chemical formula.
- Chemical formula of Kyanite Cyprine- Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
- Chemical formula of Sapphire- Al 2 O 3
Kyanite Cyprine and Sapphire Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kyanite Cyprine and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite Cyprine and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Kyanite Cyprine is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.