Sunstone and Nepheline Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.62-2.65
  
2.55-2.65
  
Fracture
Gemstones of the world (2001)
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
001
  
[1010] Poor
  
Mohs Hardness
6
  
5-6
  
Chemical Composition
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
  
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
  
Sunstone and Nepheline Chemical Formula
While comparing Sunstone and Nepheline 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 Sunstone and Nepheline chemical formula.
- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Sunstone and Nepheline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sunstone and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.