Helenite and Atacamite Physical Properties

Helenite

Atacamite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.745-3.776

1 7.18

1.5 Fracture

Not Available

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

Not Available

Perfect on {010}, fair on {101}

1.7 Mohs Hardness

Not Available3-3.5

2 10

1.8 Chemical Composition

Not Available

Cu2Cl(OH)3

Helenite and Atacamite Chemical Formula

While comparing Helenite 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 Helenite and Atacamite chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3

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Helenite and Atacamite Specific Gravity

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