Coral and Atacamite Physical Properties

Coral

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

2.60-2.703.745-3.776

1 7.18

1.5 Fracture

Irregular, Irregular, Gemstones of the world (2001)

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

Not Available

Perfect on {010}, fair on {101}

1.7 Mohs Hardness

3-43-3.5

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

Cu2Cl(OH)3

Coral and Atacamite Chemical Formula

While comparing Coral 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 Coral and Atacamite chemical formula.

Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Atacamite- Cu2Cl(OH)3

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Coral and Atacamite Specific Gravity

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