Labradorite and Pyrite Physical Properties

Labradorite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

2.69-2.725.00-5.20

1 7.18

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Fracture

Uneven, Conchoidal

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

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

Mohs Hardness

6-6.56-6.5

2 10

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Chemical Composition

(Na,Ca)_1-2Si_3-2O₈

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

Labradorite and Pyrite Chemical Formula

While comparing Labradorite 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 Labradorite and Pyrite chemical formula.

Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Labradorite and Pyrite Specific Gravity

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