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Atacamite
Atacamite

Amethyst
Amethyst



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Atacamite
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Amethyst

Atacamite and Amethyst Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.745-3.776
Conchoidal
Perfect on {010}, fair on {101}
3-3.5
Cu2Cl(OH)3
 
-
insoluble in common solvents
-
2.65
Conchoidal, ConchoidalWalter Schumann
Indiscernible
7
SiO2

Atacamite and Amethyst Chemical Formula

While comparing Atacamite and Amethyst 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 Amethyst chemical formula.

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Atacamite and Amethyst Specific Gravity

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