Atacamite and Sunstone Physical Properties

Atacamite

Sunstone

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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

3.745-3.7762.62-2.65

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Gemstones of the world (2001)

1.6 Cleavage

Perfect on {010}, fair on {101}

001

1.7 Mohs Hardness

3-3.56

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Atacamite and Sunstone Chemical Formula

While comparing Atacamite and Sunstone 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 Sunstone chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Atacamite and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.