When it comes to choosing the best pick among Organic gemstones, Jet is known to be a popular choice!Physical properties of Jet include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Jet Optical Properties are responsible for imparting various physical properties to its structure. Knowledge of these properties is equally important to gem-cutters as well as to consumers. Jet cleavage is nothing but the plane across which the crystal splits during cutting. and specific gravity of Jet is 1.19-1.35.
The physical properties of Jet, in fact, are imparted by the chemical composition of its individual molecule. The reactivity or inertness of the crystal is solely governed by its chemical structure.
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