Edenite and Spinel Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
none
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.05-3.37
  
3.64-3.66
  
Fracture
Conchoidal, Brittle, Conchoidal
  
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Good on (110)
  
None, but may exhibit slight parting
  
Mohs Hardness
5-6
  
8
  
Chemical Composition
NaCa2Mg5Si7AlO22(OH)2
  
MgAl2O4
  
Edenite and Spinel Chemical Formula
While comparing Edenite 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 Edenite and Spinel chemical formula.
- Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
- Chemical formula of Spinel- MgAl2O4
Edenite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Edenite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Edenite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.