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Melanite and Ludlamite Physical Properties


Ludlamite and Melanite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.70-4.10   
3.1-3.2   

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

Cleavage
Not Available   
Vitreous, pearly on cleavage   

Mohs Hardness
6.5-7   
3-4   

Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   
(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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Melanite and Ludlamite Chemical Formula

While comparing Melanite 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 Melanite and Ludlamite chemical formula.

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Melanite and Ludlamite Specific Gravity

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

Black Gemstones

Black Gemstones


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