Pyrophyllite and Aragonite Physical Properties
Specific Gravity
2.65-2.90
2.93-2.96
Fracture
-
Subconchoidal, Conchoidal
Cleavage
{001} Perfect
Distinct on {010}, imperfect {110} and {011}
Mohs Hardness
-9999
3.5-4
Chemical Composition
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pyrophyllite and Aragonite Chemical Formula
While comparing Pyrophyllite and Aragonite 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 Pyrophyllite and Aragonite chemical formula.
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pyrophyllite and Aragonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.