Afghanite and Zoisite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
3.20-3.50
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even
Cleavage
Perfect {10 1 0}
Perfect {010} imperfect {100}
Chemical Composition
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Ca2Al3(SiO4)3(OH)
Afghanite and Zoisite Chemical Formula
While comparing Afghanite and Zoisite 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 Zoisite 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 Zoisite- Ca2Al3(SiO4)3(OH)
Afghanite and Zoisite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Afghanite and Zoisite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Afghanite and Zoisite Optical Properties during the identification of gemstone. Specific gravity of Afghanite is 3.20-3.50 whereas that of Zoisite is 3.20-3.50.