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Ruby and Cuprite Physical Properties


Cuprite and Ruby Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.97-4.05   
5.85-6.15   

Fracture
Conchoidal   
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal   

Cleavage
No true cleavage   
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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Ruby and Cuprite Chemical Formula

While comparing Ruby 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 Ruby and Cuprite chemical formula.

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Ruby and Cuprite Specific Gravity

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

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