Forsterite and Pyrite Physical Properties
Solubility
-
insoluble in water
Specific Gravity
3.23-3.26
5.00-5.20
Fracture
Conchoidal
Uneven, Conchoidal, ConchoidalWalter Schumann
Cleavage
Perfect on {010} imperfect on {100}
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Forsterite and Pyrite Chemical Formula
While comparing Forsterite 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 Forsterite and Pyrite chemical formula.
- Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Forsterite and Pyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Forsterite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.