Popcorn Rock - The Rock That Grows!
It's a natural occurring mineral found on limited outcrops in Pilbara of Western Australia, and it's amazing properties were first discovered by Australian geologist Tom Kapitany in 2011. These geologic processes create the beautiful limestone formations that attract visitors from around the world to the Jenolan Caves in New South Wales. This limestone is also able to produce a healthy crop of "Popcorn Crystals", if you follow the "Planting Tip".