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Selenite
Selenite

Pyrite
Pyrite



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Selenite
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Pyrite

Selenite and Pyrite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
Perfect
2
CaSO4·2H2O
 
Brittle
insoluble in water
-
5.00-5.20
Uneven, Conchoidal, ConchoidalWalter Schumann
Indistinct on {001}; partings on {011} and {111}
6-6.5
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Selenite and Pyrite Chemical Formula

While comparing Selenite 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 Selenite and Pyrite chemical formula.

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Selenite and Pyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Selenite and Pyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Selenite Vs Pyrite during the identification of gemstone. Specific gravity of Selenite is whereas that of Pyrite is .