Atacamite and Linarite Physical Properties

Atacamite

Linarite

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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

3.745-3.7765.35

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

Perfect on {010}, fair on {101}

Perfect on {100}, imperfect on {001}

1.7 Mohs Hardness

3-3.52.5

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Atacamite and Linarite Chemical Formula

While comparing Atacamite and Linarite 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 Linarite chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Linarite- PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Atacamite and Linarite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Linarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Linarite Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 5.35 whereas that of Linarite is 5.35.