Edenite and Chalcedony Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.05-3.37
  
2.55-2.70
  
Fracture
Conchoidal, Brittle, Conchoidal
  
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
  
Cleavage
Good on (110)
  
Absent
  
Mohs Hardness
5-6
  
6.5-7
  
Chemical Composition
NaCa2Mg5Si7AlO22(OH)2
  
SiO2
  
Edenite and Chalcedony Chemical Formula
While comparing Edenite and Chalcedony 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 Chalcedony chemical formula.
- Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
- Chemical formula of Chalcedony- SiO2
Edenite and Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Edenite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Edenite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.