Where does 95% of the world’s opal come from?
Opal is a precious gemstone prized for its rainbow-like appearance and found in sedimentary rock formations. The birthstone of October, opal is mined all around the globe, including Brazil, Mexico, Honduras, and the western United States. However, a whopping 95% of the world’s opal comes from just one country: Australia.
The stone has been mined there since it was first discovered in Queensland in 1875; today, there are a handful of major opal mines scattered across the continent. Incredibly, geologists have estimated that Australia has only (quite literally) just began to scratch the surface of its opal resources, as most gems are harvested closer to the earth’s surface.
Answer: The correct answer is Australia.