Sapphire and Brazilianite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.03
  
2.98-2.99
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Conchoidal, Gems
  
Cleavage
None, but may exhibit parting
  
(010) Distinct to good
  
Mohs Hardness
9
  
5.5
  
Chemical Composition
Al 2 O 3
  
NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Sapphire and Brazilianite Chemical Formula
While comparing Sapphire and Brazilianite 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 Brazilianite chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sapphire and Brazilianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Brazilianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Brazilianite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.98-2.99 whereas that of Brazilianite is 2.98-2.99.
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