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Fluorite and Blue John Physical Properties


Blue John and Fluorite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
slightly water soluble and in hot hydrochloric acid   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.00-3.25   
3.00-3.25   

Fracture
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references   
Not Available   

Cleavage
Octahedral, perfect on {111}, parting on {011}   
Not Available   

Mohs Hardness
4   
Not Available   

Chemical Composition
CaF2   
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Fluorite and Blue John Chemical Formula

While comparing Fluorite 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 Fluorite and Blue John chemical formula.

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Fluorite and Blue John Specific Gravity

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

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