Pyrophyllite and Fluorite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
slightly water soluble and in hot hydrochloric acid
Durability
Not Available
Not Available
Specific Gravity
2.65-2.90
3.00-3.25
Fracture
Gemstones (2009), Flexible Flexible fragments.
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
{001} Perfect
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
Not Available
4
Chemical Composition
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaF2
Pyrophyllite and Fluorite Chemical Formula
While comparing Pyrophyllite and Fluorite 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 Fluorite chemical formula.
- Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Fluorite- CaF2
Pyrophyllite and Fluorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrophyllite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrophyllite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Pyrophyllite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.