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Charoite
Charoite

Atacamite
Atacamite



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Charoite
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Atacamite

Charoite and Atacamite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.54-2.78
3.745-3.776
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Conchoidal, Brittle
1.6 Cleavage
Good in three directions
Perfect on {010}, fair on {101}
1.7 Mohs Hardness
5-6
3-3.5
1.8 Chemical Composition
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Cu2Cl(OH)3

Charoite and Atacamite Chemical Formula

While comparing Charoite and Atacamite 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 Charoite and Atacamite chemical formula.

  • Chemical formula of Charoite- K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Atacamite- Cu2Cl(OH)3

Charoite and Atacamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Charoite and Atacamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charoite and Atacamite Optical Properties during the identification of gemstone. Specific gravity of Charoite is 3.745-3.776 whereas that of Atacamite is 3.745-3.776.