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Ruby and Legrandite Physical Properties


Legrandite 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   
3.98-4.04   

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

Cleavage
No true cleavage   
Imperfect, poor one {100}   

Mohs Hardness
9   
4.5-5   

Chemical Composition
Al 2 O 3   
Zn 2(AsO 4)(OH) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Ruby and Legrandite Chemical Formula

While comparing Ruby and Legrandite 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 Legrandite chemical formula.

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Ruby and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.

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