Nosean and Spinel Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
none
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.30-2.40
  
3.64-3.66
  
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
{110} Perfect
  
None, but may exhibit slight parting
  
Mohs Hardness
Not Available
  
8
  
Chemical Composition
Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
  
MgAl2O4
  
Nosean and Spinel Chemical Formula
While comparing Nosean and Spinel 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 Nosean and Spinel chemical formula.
- Chemical formula of Nosean- Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
- Chemical formula of Spinel- MgAl2O4
Nosean and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nosean and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nosean and Spinel Optical Properties during the identification of gemstone. Specific gravity of Nosean is 3.64-3.66 whereas that of Spinel is 3.64-3.66.