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Atacamite
Atacamite

Brookite
Brookite



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Atacamite
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Atacamite and Brookite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.745-3.776
3.87-4.14
1.5 Fracture
Conchoidal, Conchoidal, Brittle
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
Perfect on {010}, fair on {101}
Poor on {120}, in traces on {001}
1.7 Mohs Hardness
3-3.5
5.5-6
1.8 Chemical Composition
Cu2Cl(OH)3
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Atacamite and Brookite Chemical Formula

While comparing Atacamite and Brookite 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 Atacamite and Brookite chemical formula.

  • Chemical formula of Atacamite- Cu2Cl(OH)3
  • Chemical formula of Brookite- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Atacamite and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.