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Emerald
Emerald

Cuprite
Cuprite



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Emerald
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Cuprite

Emerald and Cuprite Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

Hard
-

Specific Gravity

2.67-2.785.85-6.15
1 7.18
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Fracture

Uneven, ConchoidalWalter Schumann
Conchoidal

Cleavage

Imperfect on the [0001]
Fair in four directions forming octahedrons

Mohs Hardness

7.5-83.5-4
2 10
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Chemical Composition

Be3Al2SiO6
Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Emerald and Cuprite Chemical Formula

While comparing Emerald 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 Emerald and Cuprite chemical formula.

  • Chemical formula of Emerald- Be3Al2SiO6
  • Chemical formula of Cuprite- Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Emerald and Cuprite Specific Gravity

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