This is easily one of the most fascinating marbles I've ever seen, making it very hard to let go of. Tim actually electroformed this one with the copper seemingly flowing off the sides of the marble, lava from the interior of the marble, and it is such a COOL effect! I have no idea how he did this, ha. The vortex is a beautiful mixture of organic texture and straight lines racing towards the bottom, with two awesome opals floating in the middle. The backside is a super bright exotic green honeycomb with one of Tim's signature copper mesh diamonds embedded in there. Super killer gem here! Signed 'TK 15'.