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Brucite and Spinel Physical Properties


Spinel and Brucite Physical Properties


Physical Properties

Tenacity
Sectile   
Not Available   

Solubility
Not Available   
none   

Durability
Not Available   
Not Available   

Specific Gravity
2.39   
3.64-3.66   

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

Cleavage
Perfect on {0001}   
None, but may exhibit slight parting   

Mohs Hardness
2.5   
8   

Chemical Composition
Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)   
MgAl2O4   

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Brucite and Spinel Chemical Formula

While comparing Brucite 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 Brucite and Spinel chemical formula.

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Brucite and Spinel Specific Gravity

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

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