When it comes to choosing the best pick among Brown Gemstones gemstones, Tantalite is known to be a popular choice!Physical properties of Tantalite include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Tantalite 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. Tantalite cleavage is nothing but the plane across which the crystal splits during cutting. Tantalite cleavage is Good in one direction,and specific gravity of Tantalite is 5.2.
The physical properties of Tantalite, 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 Tantalite is represented by (Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references.