Pyrite and Sard Physical Properties
Tenacity
Brittle
Not Available
Solubility
insoluble in water
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.00-5.20
2.58-2.63
Fracture
Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Indistinct on {001}; partings on {011} and {111}
Not Available
Mohs Hardness
6-6.5
6.5-7
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2Ulrich Henn and Claudio C.
Pyrite and Sard Chemical Formula
While comparing Pyrite and Sard 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 Sard chemical formula.
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Pyrite and Sard Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrite and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Sard Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 2.58-2.63 whereas that of Sard is 2.58-2.63.