Atacamite and Sylvite Physical Properties

Atacamite

Sylvite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.745-3.7761.993

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Uneven, Brittle

1.6 Cleavage

Perfect on {010}, fair on {101}

Perfect on [100], [010], [001]

1.7 Mohs Hardness

3-3.52.5

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

Not Available

Atacamite and Sylvite Chemical Formula

While comparing Atacamite and Sylvite 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 Sylvite chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3

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Atacamite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 1.993 whereas that of Sylvite is 1.993.