Gahnite and Pargasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.00-4.62
3.04-3.26
Fracture
Conchoidal, Uneven
Splintery, Brittle, Uneven
Cleavage
Indistinct parting on [111]
{110} perfect
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Gahnite and Pargasite Chemical Formula
While comparing Gahnite 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 Gahnite and Pargasite chemical formula.
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Gahnite and Pargasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.