Spinel and Serandite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
none
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.64-3.66
  
3.52
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)
  
Cleavage
None, but may exhibit slight parting
  
{100} Perfect, {001} Perfect
  
Mohs Hardness
8
  
5-5.5
  
Chemical Composition
MgAl2O4
  
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Spinel and Serandite Chemical Formula
While comparing Spinel and Serandite 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 Serandite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Spinel and Serandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Serandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Serandite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.52 whereas that of Serandite is 3.52.