Rossmanite and Sunstone Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3
  
2.62-2.65
  
Fracture
Brittle, Metallic
  
Gemstones of the world (2001)
  
Cleavage
None
  
001
  
Mohs Hardness
Not Available
  
6
  
Chemical Composition
◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
  
Rossmanite and Sunstone Chemical Formula
While comparing Rossmanite 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 Rossmanite and Sunstone chemical formula.
- Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
Rossmanite and Sunstone Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rossmanite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.