Mellite and Spinel Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
none
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.58-1.60
  
3.64-3.66
  
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
{011} Imperfect
  
None, but may exhibit slight parting
  
Mohs Hardness
2
  
8
  
Chemical Composition
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
  
MgAl2O4
  
Mellite and Spinel Chemical Formula
While comparing Mellite 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 Mellite and Spinel chemical formula.
- Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
- Chemical formula of Spinel- MgAl2O4
Mellite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Mellite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mellite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Mellite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.