Pyrite and Sylvite Physical Properties

Pyrite

Sylvite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble in water

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.201.993

1 7.18

1.5 Fracture

Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle

Uneven, Brittle

1.6 Cleavage

Indistinct on {001}; partings on {011} and {111}

Perfect on [100], [010], [001]

1.7 Mohs Hardness

6-6.52.5

2 10

1.8 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.