Board Thread:Questions and Answers/@comment-67.248.93.131-20121207212341/@comment-144.132.160.15-20121208011830

You need to get the core. To do so, build gunant's drill, have a high quality scanner, and drill all the way to the centre of a crystal that has a core (kind of rock looking thing in the centre on the drilling screen). Crystals with cores are marked with an 'up' arrow on the main screen, but you need a good scanner. Happy mining!