Spinel and Serendibite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
none
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.64-3.66
  
3.43-3.44
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
None, but may exhibit slight parting
  
None Observed
  
Mohs Hardness
8
  
6.5-7
  
Chemical Composition
MgAl2O4
  
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Spinel and Serendibite Chemical Formula
While comparing Spinel and Serendibite 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 Serendibite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Serendibite- Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Serendibite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Serendibite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Serendibite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.43-3.44 whereas that of Serendibite is 3.43-3.44.