Nepheline and Sulfur Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.65
  
Not Available
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
(e.g. graphite).
  
Cleavage
[1010] Poor
  
{???} Imperfect, {???} Imperfect
  
Mohs Hardness
5-6
  
Not Available
  
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
  
Not Available
  
Nepheline and Sulfur Chemical Formula
While comparing Nepheline and Sulfur 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 Sulfur chemical formula.
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
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Nepheline and Sulfur Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nepheline and Sulfur Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Sulfur Optical Properties during the identification of gemstone. Specific gravity of Nepheline is Not Available whereas that of Sulfur is Not Available.