Sapphire and Realgar Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.03
  
3.56
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
(e.g. graphite).
  
Cleavage
None, but may exhibit parting
  
{010} Good
  
Mohs Hardness
9
  
Not Available
  
Chemical Composition
Al 2 O 3
  
AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Sapphire and Realgar Chemical Formula
While comparing Sapphire and Realgar 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 Realgar chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Sapphire and Realgar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Realgar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Realgar Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.56 whereas that of Realgar is 3.56.
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