Pyrite and Topaz Physical Properties
Tenacity
Brittle
Not Available
Solubility
insoluble in water
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.00-5.20
3.49-3.57
Fracture
Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Indistinct on {001}; partings on {011} and {111}
[001] Perfect
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al2SiO4(F,OH)2
Pyrite and Topaz Chemical Formula
While comparing Pyrite and Topaz 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 Topaz chemical formula.
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Topaz- Al2SiO4(F,OH)2
Pyrite and Topaz Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.