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Chalcedony
Chalcedony

Cuprite
Cuprite



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Chalcedony
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Cuprite

Chalcedony and Cuprite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.55-2.705.85-6.15
1 7.18
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Fracture

Uneven, Splintery, Conchoidal
Conchoidal

Cleavage

Absent
Fair in four directions forming octahedrons

Mohs Hardness

6.5-73.5-4
2 10
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Chemical Composition

SiO2
Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Chalcedony and Cuprite Chemical Formula

While comparing Chalcedony 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 Chalcedony and Cuprite chemical formula.

  • Chemical formula of Chalcedony- SiO2
  • Chemical formula of Cuprite- Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Chalcedony and Cuprite Specific Gravity

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