where is opal found
Opal is one of the world's most beautiful and precious gemstones, predominantly found in Australia. It is one of only six types of precious gemstones found on planet earth, sharing prestigious company with diamonds, rubies, sapphires, emeralds, and pearls.ver 95% of the world's precious opal comes from Australia, and opal is Australia's national gemstone. While several different types of opal are present in nature, there are two main varieties-precious opal and common opal or potch. Precious opals exhibit the characteristic play-of-colour, and is comparatively rare.