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Pyrope and Ruby Physical Properties


Ruby and Pyrope Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
insoluble in water   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.62-3.87   
3.97-4.05   

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

Cleavage
None   
No true cleavage   

Mohs Hardness
7-7.5   
9   

Chemical Composition
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   
Al 2 O 3   

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Pyrope and Ruby Chemical Formula

While comparing Pyrope 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 Pyrope and Ruby chemical formula.

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Pyrope and Ruby Specific Gravity

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

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