Properties
Opals come in varieties of natural colors and textures, with some of the most valuable being the black, white and fire opals. Carefully extracted by gemstone jewelry suppliers, precious opals are hydrated silica, with upto one-fourth composition of water molecules. Some of the rarest opals come in the shades of white, blue, cloudy, translucent and even reddish. It is the inclusion of the water element in the opals, that is said to bring natural powers of well-being to the wearer.