Glaucophane and Pargasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3-3.15
3.04-3.26
Fracture
Conchoidal, Brittle, Conchoidal
Splintery, Brittle, Uneven
Cleavage
Good on [110] and on [001]
{110} perfect
Mohs Hardness
6.0-6.5
5-6
Chemical Composition
[ ]Na2(Mg3Al2)Si8O22(OH)2
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Glaucophane and Pargasite Chemical Formula
While comparing Glaucophane 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 Glaucophane and Pargasite chemical formula.
- Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
- Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Glaucophane and Pargasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Glaucophane and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.