Atacamite and Lazulite Physical Properties

Atacamite

Lazulite

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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

3.745-3.7763.04-3.17

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Uneven, Uneven, Gemstones of the world (2001) More from other references

1.6 Cleavage

Perfect on {010}, fair on {101}

{001} Indistinct, {???} Indistinct

1.7 Mohs Hardness

3-3.55.5

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

Atacamite and Lazulite Chemical Formula

While comparing Atacamite and Lazulite 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 Lazulite chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Lazulite- (Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

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Atacamite and Lazulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Lazulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Lazulite Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 3.04-3.17 whereas that of Lazulite is 3.04-3.17.