Atacamite and Peridot Physical Properties

Atacamite

Peridot

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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

3.745-3.7761.54-1.55

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Conchoidal

1.6 Cleavage

Perfect on {010}, fair on {101}

Poor

1.7 Mohs Hardness

3-3.56.5-7

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

(Mg,Fe)₂SiO₄

Atacamite and Peridot Chemical Formula

While comparing Atacamite and Peridot 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 Peridot chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Peridot- (Mg,Fe)₂SiO₄

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Atacamite and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Peridot Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 1.54-1.55 whereas that of Peridot is 1.54-1.55.