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Crocoite
Crocoite

Covellite
Covellite



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Crocoite
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Covellite

Crocoite and Covellite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Flexible
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.90-6.10
4.6-4.76
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
1.6 Cleavage
{110} Distinct, {001} Indistinct, {100} Indistinct
Perfect on {0001}
1.7 Mohs Hardness
2.5-3
Not Available
1.8 Chemical Composition
PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Crocoite and Covellite Chemical Formula

While comparing Crocoite 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 Crocoite and Covellite chemical formula.

  • Chemical formula of Crocoite- PbCrO 4Michael 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

Crocoite and Covellite Specific Gravity

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