Augelite and Chalcedony Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.70-2.75
2.55-2.70
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Cleavage
From the Greek for luster, for its pearly luster on the cleavage.
Absent
Mohs Hardness
4.5-5
6.5-7
Chemical Composition
Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO2
Augelite and Chalcedony Chemical Formula
While comparing Augelite and Chalcedony 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 Chalcedony chemical formula.
- Chemical formula of Augelite- Al 2(PO 4)(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Chalcedony- SiO2
Augelite and Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Augelite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Augelite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Augelite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.