Pyrite and Sard Physical Properties

Pyrite

Sard

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

insoluble in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.202.58-2.63

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

6-6.56.5-7

2 10

1.8 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.

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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.