When it comes to choosing the best pick among Gems for Gemini gemstones, Serpentine is known to be a popular choice!Physical properties of Serpentine include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Serpentine 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. Serpentine cleavage is nothing but the plane across which the crystal splits during cutting. and specific gravity of Serpentine is 2.44-2.62.
The physical properties of Serpentine, 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 Serpentine is represented by H 4Mg 3Si 2O 9Walter Schumann , Gemstones of the world (2001) More from other references.