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