Atacamite and Sugilite Physical Properties

Atacamite

Sugilite

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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

3.745-3.7762.69-2.79

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on {010}, fair on {101}

Poor on {0001}

1.7 Mohs Hardness

3-3.55.5-6.5

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Atacamite and Sugilite Chemical Formula

While comparing Atacamite and Sugilite 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 Sugilite chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Atacamite and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.