Shungite and Spinel Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
none
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
3.64-3.66
  
Fracture
Not Available
  
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Not Available
  
None, but may exhibit slight parting
  
Mohs Hardness
Not Available
  
8
  
Chemical Composition
Not Available
  
MgAl2O4
  
Shungite and Spinel Chemical Formula
While comparing Shungite 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 Shungite and Spinel chemical formula.
>- Chemical formula of Spinel- MgAl2O4
Shungite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Shungite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shungite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Shungite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.