Nepheline and Xonotlite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.65
  
2.71-2.72
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Handbook of mineralogy (2001), Difficult, Fibrous
  
Cleavage
[1010] Poor
  
{???} Good
  
Mohs Hardness
5-6
  
6-6.5
  
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
  
Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Nepheline and Xonotlite Chemical Formula
While comparing Nepheline and Xonotlite 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 Nepheline and Xonotlite chemical formula.
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
- Chemical formula of Xonotlite- Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Nepheline and Xonotlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nepheline and Xonotlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Xonotlite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.71-2.72 whereas that of Xonotlite is 2.71-2.72.