Siderite and Pyrite Physical Properties

Siderite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

3.83-3.895.00-5.20

1 7.18

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Fracture

Uneven, Conchoidal

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

Perfect on {01 1 1}

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

Mohs Hardness

3.5-4.56-6.5

2 10

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Chemical Composition

Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Siderite and Pyrite Chemical Formula

While comparing Siderite 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 Siderite and Pyrite chemical formula.

Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Siderite and Pyrite Specific Gravity

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