Chalcedony and Jadeite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.70
  
3.28-3.38
  
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
  
Splintery, UnevenArthur Thomas, Difficult, Fibrous
  
Cleavage
Absent
  
Good on [110]
  
Mohs Hardness
6.5-7
  
6.5-7
  
Chemical Composition
SiO2
  
NaAlSi 2O 6Ulrich Henn and Claudio C.
  
Chalcedony and Jadeite Chemical Formula
While comparing Chalcedony and Jadeite 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 Chalcedony and Jadeite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.
Chalcedony and Jadeite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Jadeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Jadeite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 3.28-3.38 whereas that of Jadeite is 3.28-3.38.