Pargasite and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.04-3.26
3.30-3.40
Fracture
Splintery, Brittle, Uneven
Conchoidal, Brittle, Conchoidal
Cleavage
{110} perfect
{010} perfect, {110} distinct, {100} in traces
Chemical Composition
NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Pargasite and Diaspore Chemical Formula
While comparing Pargasite and Diaspore 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 Pargasite and Diaspore chemical formula.
- Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Pargasite and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pargasite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pargasite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Pargasite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.