Edenite and Friedelite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.05-3.37
  
3.06-3.19
  
Fracture
Conchoidal, Brittle, Conchoidal
  
UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven
  
Cleavage
Good on (110)
  
{010} Perfect
  
Mohs Hardness
5-6
  
4-5
  
Chemical Composition
NaCa2Mg5Si7AlO22(OH)2
  
Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
  
Edenite and Friedelite Chemical Formula
While comparing Edenite and Friedelite 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 Friedelite chemical formula.
- Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
- Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Edenite and Friedelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Edenite and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Edenite is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.