When it comes to choosing the best pick among Yellow Gemstones gemstones, Hyacinth is known to be a popular choice!Physical properties of Hyacinth include its hardness, gravity, fracture, cleavage, etc. For any gemstone crystal, Hyacinth 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. Hyacinth cleavage is nothing but the plane across which the crystal splits during cutting. and specific gravity of Hyacinth is 3.93-4.73.
The physical properties of Hyacinth, 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 Hyacinth is represented by ZrSiO 4Michael OâDonoghue , Gems, Sixth Edition (2006).