Glass and Kornerupine Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.39-4.00
  
3.25-3.45
  
Fracture
ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Cleavage
Not Available
  
Good on {110}
  
Mohs Hardness
4-6
  
6.5
  
Chemical Composition
Not Available
  
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
  
Glass and Kornerupine Chemical Formula
While comparing Glass and Kornerupine 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 Glass and Kornerupine 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
Glass and Kornerupine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Glass and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glass and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Glass is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.