Atacamite and Ruby Physical Properties

Atacamite

Ruby

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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

3.745-3.7763.97-4.05

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Conchoidal

1.6 Cleavage

Perfect on {010}, fair on {101}

No true cleavage

1.7 Mohs Hardness

3-3.59

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

Al ₂ O ₃

Atacamite and Ruby Chemical Formula

While comparing Atacamite and Ruby 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 Ruby chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Ruby- Al ₂ O ₃

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Atacamite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.