Aquamarine (blue beryl), rainbows in crackled sections Australian

Given to me by an Aussie. This Aquamarine has an inner world to ponder. Little glimmers of rainbows 🌈 in the crackles and dances of a beautiful pool like blue and seepage of rust that looks like it dripped out of the seams. Very interesting to look at and would look great on display. Could be soaked in a rust remover but I like it as is with its beautiful colors, so I never did it. Perfectly un treated or changed in anyway.