Leucite and Riebeckite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.45-2.50
  
3.28-3.44
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Uneven, Splintery, Brittle
  
Cleavage
Poor on {110}
  
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
  
Mohs Hardness
5.5-6
  
5.0-6.0
  
Chemical Composition
KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Not Available
  
Leucite and Riebeckite Chemical Formula
While comparing Leucite and Riebeckite 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 Leucite and Riebeckite chemical formula.
- Chemical formula of Leucite- KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Leucite and Riebeckite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Leucite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Leucite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Leucite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.