Pyrite and Calcite Physical Properties

Pyrite

Calcite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble in water

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.202.67-2.73

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

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

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

6-6.53

2 10

1.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

Pyrite and Calcite Chemical Formula

While comparing Pyrite and Calcite 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 Calcite chemical formula.

Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

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Pyrite and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.