Aegirine and Corundum Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.50-3.60
  
3.90-4.05
  
Fracture
Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
  
Uneven, Uneven, Gems, Difficult, Fibrous
  
Cleavage
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}
  
None – parting in 3 directions
  
Mohs Hardness
6
  
9
  
Chemical Composition
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.
  
Al 2O 3Arthur Thomas , Gemstones (2009)
  
Aegirine and Corundum Chemical Formula
While comparing Aegirine and Corundum 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 Aegirine and Corundum chemical formula.
- Chemical formula of Aegirine- (Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
Aegirine and Corundum Specific Gravity
Another important criteria for qualitative analysis of gemstones is Aegirine and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aegirine and Corundum Optical Properties during the identification of gemstone. Specific gravity of Aegirine is 3.90-4.05 whereas that of Corundum is 3.90-4.05.