Zircon and Kornerupine Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.93-4.73
  
3.25-3.45
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Cleavage
{110} and {111}
  
Good on {110}
  
Mohs Hardness
7.5
  
6.5
  
Chemical Composition
ZrSiO4
  
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
  
Zircon and Kornerupine Chemical Formula
While comparing Zircon 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 Zircon and Kornerupine chemical formula.
- Chemical formula of Zircon- ZrSiO4
- Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Zircon and Kornerupine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Zircon and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zircon and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Zircon is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.