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Spinel and Atacamite Physical Properties


Atacamite and Spinel Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
none   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.64-3.66   
3.745-3.776   

Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)   
Conchoidal, Conchoidal, Brittle   

Cleavage
None, but may exhibit slight parting   
Perfect on {010}, fair on {101}   

Mohs Hardness
8   
3-3.5   

Chemical Composition
MgAl2O4   
Cu2Cl(OH)3   

Optical Properties >>
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Spinel and Atacamite Chemical Formula

While comparing Spinel 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 Spinel and Atacamite chemical formula.

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Spinel and Atacamite Specific Gravity

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

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