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Ludlamite and Opal Physical Properties


Opal and Ludlamite Physical Properties


Physical Properties

Tenacity
Not Available   
BrittleWalter Schumann   

Solubility
Not Available   
hot salt water   

Durability
Not Available   
Not Available   

Specific Gravity
3.1-3.2   
1.98-2.25   

Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)   
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle   

Cleavage
Vitreous, pearly on cleavage   
None   

Mohs Hardness
3-4   
5-6.5   

Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
SiO2 · nH2O   

Optical Properties >>
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Ludlamite and Opal Chemical Formula

While comparing Ludlamite and Opal 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 Ludlamite and Opal chemical formula.

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Ludlamite and Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Opal Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 1.98-2.25 whereas that of Opal is 1.98-2.25.

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Green Gemstones


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