Kornerupine and Spodumene Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.25-3.45
  
3.15-3.21
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Uneven, Subconchoidal, Gemstones (2009)
  
Cleavage
Good on {110}
  
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
  
Mohs Hardness
6.5
  
6-7
  
Chemical Composition
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
  
LiAlSi2O6
  
Kornerupine and Spodumene Chemical Formula
While comparing Kornerupine 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 Kornerupine and Spodumene chemical formula.
- Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Spodumene- LiAlSi2O6
Kornerupine and Spodumene Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kornerupine and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.