Spinel and Grossular Garnet Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
none
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.64-3.66
  
3.6
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Not Available
  
Cleavage
None, but may exhibit slight parting
  
None
  
Mohs Hardness
8
  
6.5-7.5
  
Chemical Composition
MgAl2O4
  
Ca3Al2Si3O12
  
Spinel and Grossular Garnet Chemical Formula
While comparing Spinel and Grossular Garnet 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 Spinel and Grossular Garnet chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Grossular Garnet- Ca3Al2Si3O12
Spinel and Grossular Garnet Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Grossular Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Grossular Garnet Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.6 whereas that of Grossular Garnet is 3.6.