Aquamarine and Afghanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.66-2.80
2.55-2.65
Fracture
Not Available
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Cleavage
3,1 basal
Perfect {10 1 0}
Mohs Hardness
7.5-8
5.5-6
Chemical Composition
Be3Al2SiO6
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Aquamarine and Afghanite Chemical Formula
While comparing Aquamarine 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 Aquamarine and Afghanite chemical formula.
- Chemical formula of Aquamarine- Be3Al2SiO6
- Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Aquamarine and Afghanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Aquamarine and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aquamarine and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Aquamarine is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.