Semi-precious stones: Due to a wide range of semi-precious stones, each of which reflects its natural characteristics of each material, currently used for decoration materials industry mainly in the following varieties: Tiger Eye, agate, crystal, opal, tiger stone, lapis lazuli, jade, turquoise, malachite, coral, topaz, peridot, petrified wood, star stone, obsidian, Rhodochrosite, fluorite, sapphire, tiger clear stone.