Pyrite and Fluorite Physical Properties
Solubility
insoluble in water
slightly water soluble and in hot hydrochloric acid
Specific Gravity
5.00-5.20
3.00-3.25
Fracture
Uneven, Conchoidal, ConchoidalWalter Schumann
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
Indistinct on {001}; partings on {011} and {111}
Octahedral, perfect on {111}, parting on {011}
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaF2
Pyrite and Fluorite Chemical Formula
While comparing Pyrite 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 Pyrite and Fluorite chemical formula.
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Fluorite- CaF2
Pyrite and Fluorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.