Zoisite and Anorthite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.20-3.50
2.77
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Perfect {010} imperfect {100}
Perfect [001] good [010] poor [110]
Chemical Composition
Ca2Al3(SiO4)3(OH)
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Zoisite and Anorthite Chemical Formula
While comparing Zoisite and Anorthite 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 Zoisite and Anorthite chemical formula.
- Chemical formula of Zoisite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Zoisite and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Zoisite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 2.77 whereas that of Anorthite is 2.77.