Peridot and Pyrite Physical Properties

Peridot

Pyrite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.555.00-5.20

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Poor

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

1.7 Mohs Hardness

6.5-76-6.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Peridot and Pyrite Chemical Formula

While comparing Peridot 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 Peridot and Pyrite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Peridot and Pyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Peridot and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Peridot and Pyrite Optical Properties during the identification of gemstone. Specific gravity of Peridot is 5.00-5.20 whereas that of Pyrite is 5.00-5.20.