Williamsite and Pargasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.51-2.63
3.04-3.26
Fracture
Conchoidal, Conchoidal, Handbook of mineralogy (2001)
Splintery, Brittle, Uneven
Cleavage
Not Available
{110} perfect
Chemical Composition
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Williamsite and Pargasite Chemical Formula
While comparing Williamsite 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 Williamsite and Pargasite chemical formula.
- Chemical formula of Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Williamsite and Pargasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Williamsite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Williamsite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Williamsite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.