Let's make crystal varieties. They could be used for stained glass (windows for furniture anyone?), projects, even decor, but, I get ahead of myself here.
The current crystal making process is just some barnacle talc and fireflies tossed together to make plain crystals, so I'm thinking maybe we can come up with something just as imaginative using gemstones.
Combine ruby with sapphire and you can make amethyst, rubies and barnacle talc can make rose quartz, amber with sparkly chunks could create citrine, even going as far as combining beryl chunks with sparkly to make aquamarine. Just a few thoughts.
In short, more crytals for the heck of it!