Crocoite and Atacamite Physical Properties

Crocoite

Atacamite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.90-6.103.745-3.776

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

{110} Distinct, {001} Indistinct, {100} Indistinct

Perfect on {010}, fair on {101}

1.7 Mohs Hardness

2.5-33-3.5

2 10

1.8 Chemical Composition

PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cu2Cl(OH)3

Crocoite and Atacamite Chemical Formula

While comparing Crocoite 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 Crocoite and Atacamite chemical formula.

Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Atacamite- Cu2Cl(OH)3

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Crocoite and Atacamite Specific Gravity

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