Atacamite and Gahnospinel Physical Properties

Atacamite

Gahnospinel

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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

3.745-3.7763.65-4.55

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Brittle

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on {010}, fair on {101}

None, but may exhibit slight parting

1.7 Mohs Hardness

3-3.57.5-8

2 10

1.8 Chemical Composition

Cu2Cl(OH)3

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Atacamite and Gahnospinel Chemical Formula

While comparing Atacamite and Gahnospinel 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 Gahnospinel chemical formula.

Chemical formula of Atacamite- Cu2Cl(OH)3
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Atacamite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Atacamite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.