Pyrite and Ruby Physical Properties

Pyrite

Ruby

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble in water

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.00-5.203.97-4.05

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

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

No true cleavage

1.7 Mohs Hardness

6-6.59

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Pyrite and Ruby Chemical Formula

While comparing Pyrite and Ruby 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 Ruby chemical formula.

Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Ruby- Al ₂ O ₃

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Pyrite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Pyrite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.