Poudretteite and Pargasite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.51-2.53
3.04-3.26
Fracture
Conchoidal, Splintery
Splintery, Brittle, Uneven
Cleavage
None
{110} perfect
Chemical Composition
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Poudretteite and Pargasite Chemical Formula
While comparing Poudretteite 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 Poudretteite and Pargasite chemical formula.
- Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Poudretteite and Pargasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Poudretteite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poudretteite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Poudretteite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.