Herderite and Pyrite Physical Properties

Herderite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

2.90-3.025.00-5.20

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

Indistinct on {110}

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

Mohs Hardness

5-5.56-6.5

2 10

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Chemical Composition

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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

Herderite and Pyrite Chemical Formula

While comparing Herderite 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 Herderite and Pyrite chemical formula.

Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Herderite and Pyrite Specific Gravity

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