Hercynite and Pargasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.39
3.04-3.26
Fracture
ConchoidalGemdat.org, Uneven
Splintery, Brittle, Uneven
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
{110} perfect
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Hercynite and Pargasite Chemical Formula
While comparing Hercynite 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 Hercynite and Pargasite chemical formula.
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Hercynite and Pargasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hercynite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.