Rhodochrosite and Atacamite Physical Properties

Rhodochrosite

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

3.0-3.3

3.745-3.776

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

On {10 1 1} perfect; parting on {10 1 2}

Perfect on {010}, fair on {101}

1.7 Mohs Hardness

3.5-4

3-3.5

1.8 Chemical Composition

MnCO₃

Cu2Cl(OH)3

Rhodochrosite and Atacamite Chemical Formula

While comparing Rhodochrosite 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 Rhodochrosite and Atacamite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Atacamite- Cu2Cl(OH)3

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Rhodochrosite and Atacamite Specific Gravity

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