Sapphire and Charoite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.03
  
2.54-2.78
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
None, but may exhibit parting
  
Good in three directions
  
Mohs Hardness
9
  
5-6
  
Chemical Composition
Al 2 O 3
  
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Sapphire and Charoite Chemical Formula
While comparing Sapphire and Charoite 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 Charoite chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sapphire and Charoite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Charoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Charoite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.54-2.78 whereas that of Charoite is 2.54-2.78.
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