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Alexandrite
Alexandrite

Atacamite
Atacamite



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Alexandrite
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Atacamite

Alexandrite and Atacamite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.69-3.81
-
1,1 ; 3,2.
8.5
BeAl 2 O 4
 
Brittle
-
-
3.745-3.776
Conchoidal
Perfect on {010}, fair on {101}
3-3.5
Cu2Cl(OH)3

Alexandrite and Atacamite Chemical Formula

While comparing Alexandrite 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 Alexandrite and Atacamite chemical formula.

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Alexandrite and Atacamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alexandrite and Atacamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite Vs Atacamite during the identification of gemstone. Specific gravity of Alexandrite is whereas that of Atacamite is .