Spinel and Augelite Physical Properties
Tenacity
Not Available
Not Available
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
2.70-2.75
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None, but may exhibit slight parting
From the Greek for luster, for its pearly luster on the cleavage.
Chemical Composition
MgAl2O4
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Spinel and Augelite Chemical Formula
While comparing Spinel and Augelite 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 Augelite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Spinel and Augelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Augelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Augelite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.70-2.75 whereas that of Augelite is 2.70-2.75.