Spinel and Sapphirine Physical Properties
Tenacity
Not Available
Not Available
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
3.40-3.58
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Uneven
Cleavage
None, but may exhibit slight parting
{010} Perfect
Chemical Composition
MgAl2O4
(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Sapphirine Chemical Formula
While comparing Spinel and Sapphirine 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 Sapphirine chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Spinel and Sapphirine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Sapphirine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Sapphirine Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.40-3.58 whereas that of Sapphirine is 3.40-3.58.