I have searched and can't find an adequate post that specifies how to mine for Elementium. I have researched nearly to the end of the Adventuring tech and am pretty high in all the other tech areas. I'm playing version 1.2, not 1.2a. By the way, I've never seen Elementium in any of my games, even going back to the first release of Elemental.
So, how do you mine for Elementium, find Elementium, etc. in this game?