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Sapphire and Ruby Physical Properties


Ruby 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   
3.97-4.05   

Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)   
Conchoidal   

Cleavage
None, but may exhibit parting   
No true cleavage   

Mohs Hardness
9   
9   

Chemical Composition
Al 2 O 3   
Al 2 O 3   

Optical Properties >>
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Sapphire and Ruby Chemical Formula

While comparing Sapphire and Ruby 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 Ruby chemical formula.

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Sapphire and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Ruby Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 3.97-4.05 whereas that of Ruby is 3.97-4.05.

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