Like several before me, I had an idea for a fluorite/alexandrite base! It's a little saturated, but oh well. It could be either a craftable base from gemstones, or perhaps a combo base utilizing Rhodonite, Kunzite, Labradorite, or Rough Ruby. Dawn or Jellyfish could also work colorwise for combo contributions as well.

Base color:


Frail mutation:


Fissure mutation:


Lineless colors: