Cryolite and Augelite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.97
  
2.70-2.75
  
Fracture
Uneven
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
None observed
  
From the Greek for luster, for its pearly luster on the cleavage.
  
Mohs Hardness
2.5
  
4.5-5
  
Chemical Composition
Na 3AlF 6Ulrich Henn and Claudio C.
  
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Cryolite and Augelite Chemical Formula
While comparing Cryolite and Augelite 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 Augelite chemical formula.
- Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
- Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Cryolite and Augelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cryolite and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cryolite and Augelite Optical Properties during the identification of gemstone. Specific gravity of Cryolite is 2.70-2.75 whereas that of Augelite is 2.70-2.75.