Afghanite and Ajoite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Decomposed by acids
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
2.96
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Not Available
Cleavage
Perfect {10 1 0}
Perfect on {010}
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
Afghanite and Ajoite Chemical Formula
While comparing Afghanite and Ajoite 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 Afghanite and Ajoite chemical formula.
- Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
Afghanite and Ajoite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Afghanite and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 2.96 whereas that of Ajoite is 2.96.