Ruby and Atacamite Physical Properties

Ruby

Atacamite

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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

3.97-4.053.745-3.776

1 7.18

1.5 Fracture

Conchoidal

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

No true cleavage

Perfect on {010}, fair on {101}

1.7 Mohs Hardness

93-3.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

Cu2Cl(OH)3

Ruby and Atacamite Chemical Formula

While comparing Ruby 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 Ruby and Atacamite chemical formula.

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

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Ruby and Atacamite Specific Gravity

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