Faustite and Pyrite Physical Properties
Solubility
-
insoluble in water
Specific Gravity
2.9
5.00-5.20
Fracture
Conchoidal
Uneven, Conchoidal, ConchoidalWalter Schumann
Cleavage
{???} Indistinct
Indistinct on {001}; partings on {011} and {111}
Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Faustite and Pyrite Chemical Formula
While comparing Faustite and Pyrite 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 Faustite and Pyrite chemical formula.
- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Faustite and Pyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Faustite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Faustite is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.