Pyrite and Phenakite Physical Properties

Pyrite

Phenakite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

5.00-5.202.90-2.98

1 7.18

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Fracture

Uneven, Conchoidal, ConchoidalWalter Schumann

Conchoidal, ConchoidalWalter Schumann

Cleavage

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

Distinct on {11 2 0}, imperfect on {10 1 1}

Mohs Hardness

6-6.57.5-8

2 10

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Chemical Composition

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

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Pyrite and Phenakite Chemical Formula

While comparing Pyrite and Phenakite 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 Phenakite chemical formula.

Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Pyrite and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.