Pollucite and Pyrite Physical Properties

Pollucite

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

Readily soluble in HF

insoluble in water

Durability

Specific Gravity

2.86-2.945.00-5.20

1 7.18

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Fracture

Conchoidal, Uneven

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

None observed

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

Mohs Hardness

6.5-76-6.5

2 10

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Chemical Composition

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

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

Pollucite and Pyrite Chemical Formula

While comparing Pollucite 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 Pollucite and Pyrite chemical formula.

Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare White Gemstones

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Pollucite and Pyrite Specific Gravity

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