Hemimorphite and Atacamite Physical Properties

Hemimorphite

Atacamite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.503.745-3.776

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

Perfect on {110}, poor on {101}, {001} rare

Perfect on {010}, fair on {101}

1.7 Mohs Hardness

53-3.5

2 10

1.8 Chemical Composition

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cu2Cl(OH)3

Hemimorphite and Atacamite Chemical Formula

While comparing Hemimorphite 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 Hemimorphite and Atacamite chemical formula.

Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Atacamite- Cu2Cl(OH)3

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Hemimorphite and Atacamite Specific Gravity

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