Amazonite and Afghanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.57
2.55-2.65
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Perfect {10 1 0}
Mohs Hardness
6-6.5
5.5-6
Chemical Composition
KAlSi3O8
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Amazonite and Afghanite Chemical Formula
While comparing Amazonite 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 Amazonite and Afghanite chemical formula.
- Chemical formula of Amazonite- KAlSi3O8
- Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Amazonite and Afghanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amazonite and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amazonite and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Amazonite is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.