Sapphire and Albite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.03
  
2.60-2.65
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
  
Cleavage
None, but may exhibit parting
  
Perfect on {001}, very good on {010}, imperfect on {110}
  
Mohs Hardness
9
  
6-6.5
  
Chemical Composition
Al 2 O 3
  
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Sapphire and Albite Chemical Formula
While comparing Sapphire and Albite 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 Albite chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Sapphire and Albite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Albite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.60-2.65 whereas that of Albite is 2.60-2.65.
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