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Carnelian
Carnelian

Cuprite
Cuprite



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Carnelian
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Carnelian and Cuprite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.58-2.64
5.85-6.15
1.5 Fracture
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
1.6 Cleavage
Absent
Fair in four directions forming octahedrons
1.7 Mohs Hardness
6.5-7
3.5-4
1.8 Chemical Composition
SiO2
Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Carnelian and Cuprite Chemical Formula

While comparing Carnelian 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 Carnelian and Cuprite chemical formula.

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

Carnelian and Cuprite Specific Gravity

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