Nephrite and Pyrite Physical Properties
Solubility
-
insoluble in water
Specific Gravity
2.90-3.10
5.00-5.20
Fracture
Splintery, Granular
Uneven, Conchoidal, ConchoidalWalter Schumann
Cleavage
None
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
6-6.5
6-6.5
Chemical Composition
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nephrite and Pyrite Chemical Formula
While comparing Nephrite 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 Nephrite and Pyrite chemical formula.
- Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nephrite and Pyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nephrite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.