Clinozoisite and Atacamite Physical Properties

Clinozoisite

Atacamite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.21-3.383.745-3.776

1 7.18

1.5 Fracture

Irregular/uneven, Uneven

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

Perfect on {001}

Perfect on {010}, fair on {101}

1.7 Mohs Hardness

6-73-3.5

2 10

1.8 Chemical Composition

Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Cu2Cl(OH)3

Clinozoisite and Atacamite Chemical Formula

While comparing Clinozoisite 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 Clinozoisite and Atacamite chemical formula.

Chemical formula of Clinozoisite- Ca 2Al 3(SiO 4) 3(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Atacamite- Cu2Cl(OH)3

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Clinozoisite and Atacamite Specific Gravity

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