Quote Originally Posted by Ostia View Post
No shit, they look like a crystal ? Just because they look like a crystal does not means they are the same crystals from the previous 5 games, their creation and purpose in the game is different than those before before, hell their entire concept in game is not the same.
They wouldn't call it crystallization (FFVI) if it wasn't a crystal, crystals in FF serve different purposes, especially in the later games when the world is suddenly no longer governed by mothercrystals.

Also, XI's Magicite:
http://wiki.ffxiclopedia.org/wiki/Magicite:_Aurastone

Crystals aren't just one thing in games, especially in FF games.