Atacamite and Star Ruby Physical Properties

Atacamite

Star Ruby

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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

3.745-3.7763.95-4.10

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Perfect on {010}, fair on {101}

Not Available

1.7 Mohs Hardness

3-3.5Not Available

2 10

1.11 Chemical Composition

Cu2Cl(OH)3

Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

Atacamite and Star Ruby Chemical Formula

While comparing Atacamite and Star 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 Star Ruby chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)

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Atacamite and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.