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Ruby and Ludlamite Physical Properties


Ludlamite 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   
3.1-3.2   

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

Cleavage
No true cleavage   
Vitreous, pearly on cleavage   

Mohs Hardness
9   
3-4   

Chemical Composition
Al 2 O 3   
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Ruby and Ludlamite Chemical Formula

While comparing Ruby and Ludlamite 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 Ludlamite chemical formula.

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Ruby and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.

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