Australis Fire Opal, This new a exciting discovery of Australian fire opal is now being sold. This amazing discovery is the biggest new Australian opal discovery in the last 100 years. Australis Fire Opals are 100% natural and untreated in any way, the mining is environmentally responsible and sustainability. No blasting or chemicals are used in the mining process. Like our Facebook page to keep up-to-date as new discoveries are made.