Topaz and Kornerupine Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.49-3.57
  
3.25-3.45
  
Fracture
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Cleavage
[001] Perfect
  
Good on {110}
  
Mohs Hardness
8
  
6.5
  
Chemical Composition
Al2SiO4(F,OH)2
  
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
  
Topaz and Kornerupine Chemical Formula
While comparing Topaz 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 Topaz and Kornerupine chemical formula.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
- Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Topaz and Kornerupine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Topaz and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.