Augelite and Emerald Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
2.70-2.75
2.67-2.78
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
From the Greek for luster, for its pearly luster on the cleavage.
Imperfect on the [0001]
Mohs Hardness
4.5-5
7.5-8
Chemical Composition
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Be3Al2SiO6
Augelite and Emerald Chemical Formula
While comparing Augelite and Emerald 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 Emerald chemical formula.
- Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Emerald- Be3Al2SiO6
Augelite and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Augelite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Augelite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.