Pyrite and Sylvite Physical Properties
Solubility
insoluble in water
Soluble
Durability
Not Available
Not Available
Specific Gravity
5.00-5.20
1.993
Fracture
Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
Uneven, Brittle
Cleavage
Indistinct on {001}; partings on {011} and {111}
Perfect on [100], [010], [001]
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
Pyrite and Sylvite Chemical Formula
While comparing Pyrite and Sylvite 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 Sylvite chemical formula.
- Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Pyrite and Sylvite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyrite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 1.993 whereas that of Sylvite is 1.993.