Pyrophyllite and Poldervaartite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.65-2.90
2.91
Fracture
Gemstones (2009), Flexible Flexible fragments.
Handbook of mineralogy (2001)
Cleavage
{001} Perfect
None
Mohs Hardness
Not Available
Not Available
Chemical Composition
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Pyrophyllite and Poldervaartite Chemical Formula
While comparing Pyrophyllite and Poldervaartite 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 Poldervaartite chemical formula.
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Pyrophyllite and Poldervaartite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2.91 whereas that of Poldervaartite is 2.91.