Nepheline and Langbeinite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Slowly dissolves in water
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.65
  
Not Available
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Conchoidal, Brittle
  
Cleavage
[1010] Poor
  
None
  
Mohs Hardness
5-6
  
3.5-4
  
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
  
Not Available
  
Nepheline and Langbeinite Chemical Formula
While comparing Nepheline and Langbeinite 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 Langbeinite chemical formula.
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
>
Nepheline and Langbeinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nepheline and Langbeinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Langbeinite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is Not Available whereas that of Langbeinite is Not Available.