Atacamite and Cobaltite Physical Properties

Atacamite

Cobaltite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.745-3.7766.3

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

1.6 Cleavage

Perfect on {010}, fair on {101}

{100} Good, {010} Good, {001} Good

1.7 Mohs Hardness

3-3.55.5

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

CoAsSAnthony et al , Handbook of mineralogy (2001)

Atacamite and Cobaltite Chemical Formula

While comparing Atacamite and Cobaltite 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 Cobaltite chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

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Atacamite and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 6.3 whereas that of Cobaltite is 6.3.