Sylvite and Sunstone Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.993
  
2.62-2.65
  
Fracture
Uneven, Brittle
  
Gemstones of the world (2001)
  
Cleavage
Perfect on [100], [010], [001]
  
001
  
Mohs Hardness
2.5
  
6
  
Chemical Composition
Not Available
  
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
  
Sylvite and Sunstone Chemical Formula
While comparing Sylvite and Sunstone 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 Sunstone chemical formula.
>- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
Sylvite and Sunstone Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sylvite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.