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Ludlamite and Jet Physical Properties


Jet
Jet and Ludlamite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.1-3.2   
1.19-1.35   

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

Cleavage
Vitreous, pearly on cleavage   
Not Available   

Mohs Hardness
3-4   
2.5-4   

Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Not Available   

Optical Properties >>
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Ludlamite and Jet Chemical Formula

While comparing Ludlamite and Jet 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 Jet chemical formula.

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Ludlamite and Jet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Jet Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 1.19-1.35 whereas that of Jet is 1.19-1.35.

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Green Gemstones


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