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Ruby and Sellaite Physical Properties


Sellaite 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   
3.14-3.16   

Fracture
Conchoidal   
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle   

Cleavage
No true cleavage   
Perfect on {010} and {110}   

Mohs Hardness
9   
5-5.5   

Chemical Composition
Al 2 O 3   
MgF 2Ulrich Henn and Claudio C.   

Optical Properties >>
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Ruby and Sellaite Chemical Formula

While comparing Ruby and Sellaite 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 Sellaite chemical formula.

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Ruby and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Sellaite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.14-3.16 whereas that of Sellaite is 3.14-3.16.

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