Londonite and Kashmir sapphire Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.34
  
Not Available
  
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Not Available
  
Cleavage
None
  
Not Available
  
Mohs Hardness
Not Available
  
Not Available
  
Chemical Composition
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
  
Not Available
  
Londonite and Kashmir sapphire Chemical Formula
While comparing Londonite and Kashmir sapphire 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 Londonite and Kashmir sapphire chemical formula.
- Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
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Londonite and Kashmir sapphire Specific Gravity
Another important criteria for qualitative analysis of gemstones is Londonite and Kashmir sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Londonite and Kashmir sapphire Optical Properties during the identification of gemstone. Specific gravity of Londonite is Not Available whereas that of Kashmir sapphire is Not Available.