Sylvite and Jadeite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.993
  
3.28-3.38
  
Fracture
Uneven, Brittle
  
Splintery, UnevenArthur Thomas, Difficult, Fibrous
  
Cleavage
Perfect on [100], [010], [001]
  
Good on [110]
  
Mohs Hardness
2.5
  
6.5-7
  
Chemical Composition
Not Available
  
NaAlSi 2O 6Ulrich Henn and Claudio C.
  
Sylvite and Jadeite Chemical Formula
While comparing Sylvite 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 Sylvite and Jadeite chemical formula.
>- Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.
Sylvite and Jadeite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sylvite and Jadeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Jadeite Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 3.28-3.38 whereas that of Jadeite is 3.28-3.38.