Augelite and Sapphire Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.70-2.75
  
3.95-4.03
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
From the Greek for luster, for its pearly luster on the cleavage.
  
None, but may exhibit parting
  
Mohs Hardness
4.5-5
  
9
  
Chemical Composition
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Al 2 O 3
  
Augelite and Sapphire Chemical Formula
While comparing Augelite 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 Augelite and Sapphire chemical formula.
- Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Sapphire- Al 2 O 3
Augelite and Sapphire Specific Gravity
Another important criteria for qualitative analysis of gemstones is Augelite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Augelite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.