Pyrophyllite and Pollucite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Readily soluble in HF
Durability
Not Available
Not Available
Specific Gravity
2.65-2.90
2.86-2.94
Fracture
Gemstones (2009), Flexible Flexible fragments.
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
{001} Perfect
None observed
Mohs Hardness
Not Available
6.5-7
Chemical Composition
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Pyrophyllite and Pollucite Chemical Formula
While comparing Pyrophyllite and Pollucite 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 Pollucite chemical formula.
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Pyrophyllite and Pollucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.