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Pyrargyrite
Pyrargyrite

Covellite
Covellite



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Pyrargyrite
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Covellite

Pyrargyrite and Covellite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Flexible
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.854.6-4.76
Amber
1 7.18
1.5 Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
1.6 Cleavage
Distinct on {10 1 1}, imperfect on {01 1 2}
Perfect on {0001}
1.7 Mohs Hardness
2.5-3Not Available
Amber
2 10
1.8 Chemical Composition
Ag 3SbS 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Pyrargyrite and Covellite Chemical Formula

While comparing Pyrargyrite 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 Pyrargyrite and Covellite chemical formula.

  • Chemical formula of Pyrargyrite- Ag 3SbS 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Covellite- CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Pyrargyrite and Covellite Specific Gravity

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