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Pyrope
Pyrope

Cuprite
Cuprite



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Pyrope
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Cuprite

Pyrope and Cuprite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

insoluble in water
-

Durability

-
-

Specific Gravity

3.62-3.875.85-6.15
1 7.18
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Fracture

Conchoidal
Conchoidal

Cleavage

None
Fair in four directions forming octahedrons

Mohs Hardness

7-7.53.5-4
2 10
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Chemical Composition

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyrope and Cuprite Chemical Formula

While comparing Pyrope and Cuprite 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 Pyrope and Cuprite chemical formula.

  • Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Cuprite- Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Pyrope and Cuprite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pyrope and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyrope and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Pyrope is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.