Atacamite and Cassiterite Physical Properties

Atacamite

Cassiterite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.745-3.7766.86-7.03

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular

1.6 Cleavage

Perfect on {010}, fair on {101}

{100} imperfect, {110} indistinct; partings on {111} or {011}

1.7 Mohs Hardness

3-3.56-7

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Atacamite and Cassiterite Chemical Formula

While comparing Atacamite and Cassiterite 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 Cassiterite chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Atacamite and Cassiterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.