Augelite and Iolite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.70-2.75
2.6-2.7
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Not Available
Cleavage
From the Greek for luster, for its pearly luster on the cleavage.
3,1
Mohs Hardness
4.5-5
7-7.5
Chemical Composition
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Mg2Al4Si5O18
Augelite and Iolite Chemical Formula
While comparing Augelite and Iolite 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 Iolite chemical formula.
- Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Iolite- Mg2Al4Si5O18
Augelite and Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Augelite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Augelite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.