Riebeckite and Atacamite Physical Properties

Riebeckite

Atacamite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.28-3.443.745-3.776

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

Perfect on {010}, fair on {101}

1.7 Mohs Hardness

5.0-6.03-3.5

2 10

1.8 Chemical Composition

Not Available

Cu2Cl(OH)3

Riebeckite and Atacamite Chemical Formula

While comparing Riebeckite 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 Riebeckite and Atacamite chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3

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Riebeckite and Atacamite Specific Gravity

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