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Gaylussite
Gaylussite

Covellite
Covellite



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Gaylussite
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Covellite

Gaylussite and Covellite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Flexible
1.2 Solubility
decomposes in water
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.93-1.99
4.6-4.76
1.5 Fracture
Conchoidal, Conchoidal, Brittle
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
1.6 Cleavage
perfect [110]
Perfect on {0001}
1.7 Mohs Hardness
2.5
Not Available
1.8 Chemical Composition
Na2Ca(CO3)2•5(H2O)
CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Gaylussite and Covellite Chemical Formula

While comparing Gaylussite 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 Gaylussite and Covellite chemical formula.

  • Chemical formula of Gaylussite- Na2Ca(CO3)2•5(H2O)
  • Chemical formula of Covellite- CuSMichael O’Donoghue , Gems, Sixth edition (2006) More from other references

Gaylussite and Covellite Specific Gravity

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