As some of the most unique and special gemstones in the world, opals are known for their iridescent, fire-like appearance. If you look at Opal from a historical context, you will find that throughout centuries, people considered that opals were made up of multiple gemstones and they were a single gem that was a cluster of different stones. Although opals are some of the most aesthetically pleasing stones that are desired by a lot of people, one problem with opals is that they are also the softest gem-grade stones in the jewelry market. This is why opals require extra care and protection, and preserving their luminous fire and sheen is difficult in the long run.
