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