Sunstone and Pyrite Physical Properties

Sunstone

Pyrite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

insoluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.62-2.655.00-5.20

1 7.18

1.5 Fracture

Gemstones of the world (2001)

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

1.6 Cleavage

001

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

1.7 Mohs Hardness

66-6.5

2 10

1.8 Chemical Composition

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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

Sunstone and Pyrite Chemical Formula

While comparing Sunstone 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 Sunstone and Pyrite chemical formula.

Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈
Chemical formula of Pyrite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sunstone and Pyrite Specific Gravity

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