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Cuprite
Cuprite

Pyrope
Pyrope



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Cuprite
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Pyrope

Cuprite and Pyrope Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

-
insoluble in water

Durability

-
-

Specific Gravity

5.85-6.153.62-3.87
1 7.18
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Fracture

Conchoidal
Conchoidal

Cleavage

Fair in four directions forming octahedrons
None

Mohs Hardness

3.5-47-7.5
2 10
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Chemical Composition

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

Cuprite and Pyrope Chemical Formula

While comparing Cuprite and Pyrope 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 Cuprite and Pyrope chemical formula.

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

Cuprite and Pyrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cuprite and Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cuprite and Pyrope Optical Properties during the identification of gemstone. Specific gravity of Cuprite is 3.62-3.87 whereas that of Pyrope is 3.62-3.87.