Nepheline and Glaucophane Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.65
  
3-3.15
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Conchoidal, Brittle, Conchoidal
  
Cleavage
[1010] Poor
  
Good on [110] and on [001]
  
Mohs Hardness
5-6
  
6.0-6.5
  
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
  
[ ]Na2(Mg3Al2)Si8O22(OH)2
  
Nepheline and Glaucophane Chemical Formula
While comparing Nepheline and Glaucophane 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 Glaucophane chemical formula.
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
- Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Nepheline and Glaucophane Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nepheline and Glaucophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Glaucophane Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 3-3.15 whereas that of Glaucophane is 3-3.15.