Moonstone and Pyrite Physical Properties

Moonstone

Pyrite

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Physical Properties

Tenacity

Brittle

Solubility

insoluble in water

Durability

Specific Gravity

2.56-2.605.00-5.20

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Uneven, Conchoidal, ConchoidalWalter Schumann

Cleavage

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

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

Mohs Hardness

6-6.56-6.5

2 10

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Chemical Composition

Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

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

Moonstone and Pyrite Chemical Formula

While comparing Moonstone 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 Moonstone and Pyrite chemical formula.

Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Semi Precious Gemstones

Moonstone Vs Rubellite

Moonstone Vs Schorlomite

Moonstone Vs Simpsonite

Moonstone and Pyrite Specific Gravity

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