Gypsum and Pyrophyllite Physical Properties
Tenacity
Flexible
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.20-2.40
2.65-2.90
Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
Gemstones (2009), Flexible Flexible fragments.
Cleavage
Perfect on {010}, distinct on {100}
{001} Perfect
Mohs Hardness
2
Not Available
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Gypsum and Pyrophyllite Chemical Formula
While comparing Gypsum and Pyrophyllite 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 Gypsum and Pyrophyllite chemical formula.
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Gypsum and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gypsum and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.