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Ruby and Grandidierite Physical Properties


Grandidierite 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   
2.85-3.00   

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

Cleavage
No true cleavage   
Perfect   

Mohs Hardness
9   
7.5   

Chemical Composition
Al 2 O 3   
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.   

Optical Properties >>
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Ruby and Grandidierite Chemical Formula

While comparing Ruby and Grandidierite 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 Grandidierite chemical formula.

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Ruby and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.

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