Leucite and Spinel Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
none
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.45-2.50
  
3.64-3.66
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Poor on {110}
  
None, but may exhibit slight parting
  
Mohs Hardness
5.5-6
  
8
  
Chemical Composition
KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
MgAl2O4
  
Leucite and Spinel Chemical Formula
While comparing Leucite and Spinel 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 Spinel chemical formula.
- Chemical formula of Leucite- KAlSi 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Spinel- MgAl2O4
Leucite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Leucite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Leucite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Leucite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.