Esperite and Pyrite Physical Properties
Solubility
-
insoluble in water
Specific Gravity
4.28-4.42
5.00-5.20
Fracture
Conchoidal
Uneven, Conchoidal, ConchoidalWalter Schumann
Cleavage
Distinct on [010] and [100] poor on [101]
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
5-5.5
6-6.5
Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Esperite and Pyrite Chemical Formula
While comparing Esperite 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 Esperite and Pyrite chemical formula.
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Esperite and Pyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Esperite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Esperite is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.