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Magnesite and Blue John Physical Properties


Blue John and Magnesite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Effervesces in hot HCl   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.92-3.12   
3.00-3.25   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   
Not Available   

Cleavage
[10 1 1] perfect   
Not Available   

Mohs Hardness
3.5-4.5   
Not Available   

Chemical Composition
MgCO 3Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Magnesite and Blue John Chemical Formula

While comparing Magnesite and Blue John 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 Magnesite and Blue John chemical formula.

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Magnesite and Blue John Specific Gravity

Another important criteria for qualitative analysis of gemstones is Magnesite and Blue John Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Magnesite and Blue John Optical Properties during the identification of gemstone. Specific gravity of Magnesite is 3.00-3.25 whereas that of Blue John is 3.00-3.25.

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