Kornerupine and London blue topaz Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.25-3.45
  
Not Available
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Not Available
  
Cleavage
Good on {110}
  
Not Available
  
Mohs Hardness
6.5
  
Not Available
  
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 London blue topaz Chemical Formula
While comparing Kornerupine and London blue topaz 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 London blue topaz 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 London blue topaz Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kornerupine and London blue topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine and London blue topaz Optical Properties during the identification of gemstone. Specific gravity of Kornerupine is Not Available whereas that of London blue topaz is Not Available.