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Annabergite
Annabergite

Cuprite
Cuprite



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Annabergite
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Annabergite and Cuprite Physical Properties

1 Physical Properties
1.1 Tenacity
Sectile
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.07
5.85-6.15
1.5 Fracture
Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
1.6 Cleavage
Perfect on {010}, indistinct on {100} and {102}
Fair in four directions forming octahedrons
1.7 Mohs Hardness
2
3.5-4
1.8 Chemical Composition
Ni3(AsO4)2•8(H2O)
Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Annabergite and Cuprite Chemical Formula

While comparing Annabergite 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 Annabergite and Cuprite chemical formula.

  • Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
  • Chemical formula of Cuprite- Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Annabergite and Cuprite Specific Gravity

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