Cryolite and Star Sapphire Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.97
  
3.90-4.05
  
Fracture
Uneven
  
Not Available
  
Cleavage
None observed
  
Not Available
  
Mohs Hardness
2.5
  
Not Available
  
Chemical Composition
Na 3AlF 6Ulrich Henn and Claudio C.
  
Al 2O 3Ulrich Henn and Claudio C.
  
Cryolite and Star Sapphire Chemical Formula
While comparing Cryolite and Star 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 Cryolite and Star Sapphire chemical formula.
- Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
- Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Cryolite and Star Sapphire Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cryolite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.