Brucite and Atacamite Physical Properties

Brucite

Atacamite

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1 Physical Properties

1.1 Tenacity

Sectile

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.393.745-3.776

1 7.18

1.5 Fracture

Irregular

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

Perfect on {0001}

Perfect on {010}, fair on {101}

1.7 Mohs Hardness

2.53-3.5

2 10

1.8 Chemical Composition

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Cu2Cl(OH)3

Brucite and Atacamite Chemical Formula

While comparing Brucite 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 Brucite and Atacamite chemical formula.

Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Atacamite- Cu2Cl(OH)3

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Brucite and Atacamite Specific Gravity

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