Nepheline and Aragonite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Dilute acid
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.65
  
2.93-2.96
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
[1010] Poor
  
Distinct on {010}, imperfect {110} and {011}
  
Mohs Hardness
5-6
  
3.5-4
  
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
  
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Nepheline and Aragonite Chemical Formula
While comparing Nepheline and Aragonite 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 Aragonite chemical formula.
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nepheline and Aragonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nepheline and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.