Zoisite and Pargasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.20-3.50
3.04-3.26
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even
Splintery, Brittle, Uneven
Cleavage
Perfect {010} imperfect {100}
{110} perfect
Chemical Composition
Ca2Al3(SiO4)3(OH)
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Zoisite and Pargasite Chemical Formula
While comparing Zoisite and Pargasite 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 Pargasite chemical formula.
- Chemical formula of Zoisite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Zoisite and Pargasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Zoisite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zoisite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Zoisite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.