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Chalcedony
Chalcedony

Covellite
Covellite



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Chalcedony
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Covellite

Chalcedony and Covellite Physical Properties

Physical Properties

Tenacity

-
Flexible

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.55-2.704.6-4.76
1 7.18
👆🏻

Fracture

Uneven, Splintery, Conchoidal
-

Cleavage

Absent
Perfect on {0001}

Mohs Hardness

6.5-7-9999
2 10
👆🏻

Chemical Composition

SiO2
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Chalcedony and Covellite Chemical Formula

While comparing Chalcedony and Covellite 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 Covellite chemical formula.

  • Chemical formula of Chalcedony- SiO2
  • Chemical formula of Covellite- CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Chalcedony and Covellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Chalcedony and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Covellite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 4.6-4.76 whereas that of Covellite is 4.6-4.76.