The three-meter tall amethyst geode - a hollow rock filled with amethyst crystals - is the main attraction at the Crystal Caves at Atherton, southwest of Cairns. But it's now missing a bit after a ...
The Amethyst geodes are unique structures that are composed of 3 layers. Outer layer- Smooth basalt Middle layer- Calcite Inner Layer- Amethyst clusters and the shards. If you are struggling to ...