Sapphire and Spodumene Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
insoluble
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.03
  
3.15-3.21
  
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Uneven, Subconchoidal, Gemstones (2009)
  
Cleavage
None, but may exhibit parting
  
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
  
Mohs Hardness
9
  
6-7
  
Chemical Composition
Al 2 O 3
  
LiAlSi2O6
  
Sapphire and Spodumene Chemical Formula
While comparing Sapphire and Spodumene 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 Spodumene chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Spodumene- LiAlSi2O6
Sapphire and Spodumene Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.
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