Atacamite and Diaspore Physical Properties

Atacamite

Diaspore

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1 Physical Properties

1.1 Tenacity

Brittle

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.745-3.7763.30-3.40

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Perfect on {010}, fair on {101}

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

3-3.56.5-7

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Atacamite and Diaspore Chemical Formula

While comparing Atacamite and Diaspore 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 Diaspore chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Atacamite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.