Purpurite and Pargasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.2-3.4
3.04-3.26
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Splintery, Brittle, Uneven
Cleavage
[100] [001] perfect
{110} perfect
Chemical Composition
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Purpurite and Pargasite Chemical Formula
While comparing Purpurite 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 Purpurite and Pargasite chemical formula.
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Purpurite and Pargasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Purpurite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.