Opalised shark teeth fossils have been discovered in New South Wales. It's very rare that organisms become fossils and even rarer that they become opals. Find out how 👇 | ABC Landline

Great White Shark Tooth from the lower jaw pulled out of the ancient ocean and fossil layer that had been exposed and eroded. We can tell this tooth was from the lower jaw of the shark because of the skinny shape compared to the wider, upper jaw teeth | SHRKco