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Elbaite
Elbaite

Atacamite
Atacamite



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Elbaite
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Atacamite

Elbaite and Atacamite Physical Properties

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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
2.90-3.10
3.745-3.776
1.5 Fracture
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal, Conchoidal, Brittle
1.6 Cleavage
Poor/indistinct on {1120} and {1011}
Perfect on {010}, fair on {101}
1.7 Mohs Hardness
7
3-3.5
1.8 Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Cu2Cl(OH)3

Elbaite and Atacamite Chemical Formula

While comparing Elbaite 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 Elbaite and Atacamite chemical formula.

  • Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
  • Chemical formula of Atacamite- Cu2Cl(OH)3

Elbaite and Atacamite Specific Gravity

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