When it comes to choosing the best pick among Precious Gemstones gemstones, Sapphire is known to be a popular choice!Physical properties of Sapphire include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Sapphire 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. Sapphire cleavage is nothing but the plane across which the crystal splits during cutting. Sapphire cleavage is None, but may exhibit parting,and specific gravity of Sapphire is 3.95-4.03.
The physical properties of Sapphire, 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. Chemical composition of Sapphire is represented by Al 2 O 3.
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