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Ruby and Danburite Physical Properties


Danburite 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   
2.97-3.03   

Fracture
Conchoidal   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle   

Cleavage
No true cleavage   
{001} Poor   

Mohs Hardness
9   
7   

Chemical Composition
Al 2 O 3   
CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Ruby and Danburite Chemical Formula

While comparing Ruby and Danburite 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 Danburite chemical formula.

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Ruby and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Danburite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.97-3.03 whereas that of Danburite is 2.97-3.03.

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