Emerald and Pyrite Physical Properties

Emerald

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Hard

Specific Gravity

2.67-2.785.00-5.20

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

Imperfect on the [0001]

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

Mohs Hardness

7.5-86-6.5

2 10

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Chemical Composition

Be₃Al₂SiO₆

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

Emerald and Pyrite Chemical Formula

While comparing Emerald 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 Emerald and Pyrite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Emerald and Pyrite Specific Gravity

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