Chalcedony and Pyrite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Soluble
insoluble in water
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
5.00-5.20
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Cleavage
Absent
Indistinct on {001}; partings on {011} and {111}
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
SiO2
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chalcedony and Pyrite Chemical Formula
While comparing Chalcedony 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 Chalcedony and Pyrite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chalcedony and Pyrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.