Crystal Snail
Crystal Snail is a mob of the Shimmering Frontier Update. It is pacific and doesn't attack, it only wander around.
Behavior: It appear to wonder randomly on a set track of tunnels. It can break walls presents on its tracks.
It's shell is made from Solarite Ore that can be mined off it with a pickaxe. Doing so will slowly damage and then break the shell, yielding one(?) ore each time. Once the shell is broken, the snail can recover it if given enough time.