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