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Ruby and Boulder Opal Physical Properties


Boulder Opal and Ruby Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.97-4.05   
1.98-2.25   

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

Cleavage
No true cleavage   
Not Available   

Mohs Hardness
9   
5-6.5   

Chemical Composition
Al 2 O 3   
SiO 2 + H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Ruby and Boulder Opal Chemical Formula

While comparing Ruby and Boulder Opal 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 Boulder Opal chemical formula.

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Ruby and Boulder Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Ruby is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.

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