Celestine and Atacamite Physical Properties

Celestine

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

3.90-4.003.745-3.776

1 7.18

1.5 Fracture

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

Perfect on {001}, good on {210}, poor on {010}

Perfect on {010}, fair on {101}

1.7 Mohs Hardness

3-3.53-3.5

2 10

1.8 Chemical Composition

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

Cu2Cl(OH)3

Celestine and Atacamite Chemical Formula

While comparing Celestine 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 Celestine and Atacamite chemical formula.

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

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Celestine and Atacamite Specific Gravity

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