Scolecite and Nepheline Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.20-2.23
  
2.55-2.65
  
Fracture
Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
Perfect on {110} and {1 1 0}
  
[1010] Poor
  
Mohs Hardness
5-5.5
  
5-6
  
Chemical Composition
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
  
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
  
Scolecite and Nepheline Chemical Formula
While comparing Scolecite and Nepheline 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 Scolecite and Nepheline chemical formula.
- Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Scolecite and Nepheline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Scolecite and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scolecite and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Scolecite is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.