Holmquistite and Pargasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.95-3.13
3.04-3.26
Fracture
Not Available
Splintery, Brittle, Uneven
Cleavage
{210} Perfect
{110} perfect
Chemical Composition
Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Holmquistite and Pargasite Chemical Formula
While comparing Holmquistite 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 Holmquistite and Pargasite chemical formula.
- Chemical formula of Holmquistite- Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony 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)
Holmquistite and Pargasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Holmquistite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Holmquistite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Holmquistite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.