Pectolite and Pyrite Physical Properties

Pectolite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

2.74-2.905.00-5.20

1 7.18

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Fracture

Uneven, Splintery

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

Perfect on {100} and {001}

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

Mohs Hardness

4.5-56-6.5

2 10

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Chemical Composition

Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.

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

Pectolite and Pyrite Chemical Formula

While comparing Pectolite 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 Pectolite and Pyrite chemical formula.

Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Colorless Gems

Pectolite Vs Orthoclase

Pectolite Vs Oligoclase

Pectolite Vs Muscovite

Pectolite and Pyrite Specific Gravity

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