Riesling Beryl and Afghanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.66-2.86
2.55-2.65
Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Cleavage
Not Available
Perfect {10 1 0}
Mohs Hardness
7.5-8
5.5-6
Chemical Composition
Al 2Be 3Si 6O 18Martin H.
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Riesling Beryl and Afghanite Chemical Formula
While comparing Riesling Beryl and Afghanite 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 Riesling Beryl and Afghanite chemical formula.
- Chemical formula of Riesling Beryl- Al 2Be 3Si 6O 18Martin H.
- Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Riesling Beryl and Afghanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Riesling Beryl and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Riesling Beryl and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Riesling Beryl is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.