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Sapphire and Cuprite Physical Properties


Cuprite and Sapphire Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
insoluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.95-4.03   
5.85-6.15   

Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)   
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal   

Cleavage
None, but may exhibit parting   
Fair in four directions forming octahedrons   

Mohs Hardness
9   
3.5-4   

Chemical Composition
Al 2 O 3   
Cu 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Sapphire and Cuprite Chemical Formula

While comparing Sapphire and Cuprite 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 Sapphire and Cuprite chemical formula.

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Sapphire and Cuprite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.

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