Sapphire and Rutile Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble
  
Insoluble in acids
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.03
  
4.20-4.30
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
None, but may exhibit parting
  
{110} good, 100 moderate, parting on {092} and {011}
  
Mohs Hardness
9
  
6-6.5
  
Chemical Composition
Al 2 O 3
  
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Sapphire and Rutile Chemical Formula
While comparing Sapphire 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 Sapphire and Rutile chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Sapphire and Rutile Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Rutile Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 4.20-4.30 whereas that of Rutile is 4.20-4.30.
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