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Annabergite and Spinel Physical Properties


Spinel and Annabergite Physical Properties


Physical Properties

Tenacity
Sectile   
Not Available   

Solubility
Not Available   
none   

Durability
Not Available   
Not Available   

Specific Gravity
3.07   
3.64-3.66   

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

Cleavage
Perfect on {010}, indistinct on {100} and {102}   
None, but may exhibit slight parting   

Mohs Hardness
2   
8   

Chemical Composition
Ni3(AsO4)2•8(H2O)   
MgAl2O4   

Optical Properties >>
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Annabergite and Spinel Chemical Formula

While comparing Annabergite and Spinel 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 Annabergite and Spinel chemical formula.

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Annabergite and Spinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.

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