Almandine and Edenite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.30
  
3.05-3.37
  
Fracture
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Conchoidal, Brittle, Conchoidal
  
Cleavage
none
  
Good on (110)
  
Mohs Hardness
7-7.5
  
5-6
  
Chemical Composition
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  
NaCa2Mg5Si7AlO22(OH)2
  
Almandine and Edenite Chemical Formula
While comparing Almandine and Edenite 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 Almandine and Edenite chemical formula.
- Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
Almandine and Edenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Almandine and Edenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Edenite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 3.05-3.37 whereas that of Edenite is 3.05-3.37.