Kornerupine and Jet Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.25-3.45
  
1.19-1.35
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
  
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
  
Cleavage
Good on {110}
  
Not Available
  
Mohs Hardness
6.5
  
2.5-4
  
Chemical Composition
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
  
Not Available
  
Kornerupine and Jet Chemical Formula
While comparing Kornerupine and Jet 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 Jet 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
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Kornerupine and Jet Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kornerupine and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and Jet Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is 1.19-1.35 whereas that of Jet is 1.19-1.35.