Edenite and Anorthite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.05-3.37
  
2.77
  
Fracture
Conchoidal, Brittle, Conchoidal
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Good on (110)
  
Perfect [001] good [010] poor [110]
  
Mohs Hardness
5-6
  
6-6.5
  
Chemical Composition
NaCa2Mg5Si7AlO22(OH)2
  
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Edenite and Anorthite Chemical Formula
While comparing Edenite and Anorthite 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 Anorthite chemical formula.
- Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Edenite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Edenite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Edenite is 2.77 whereas that of Anorthite is 2.77.