Here is your chance to own a super rare collaboration between Eush and CalM, the only collab marble I've ever seen from them! Two of the world's best young boro artists have combined to form this fascinating specimen, with Eush's sweet air trap implosion on one side, and CalM's killer honeycomb on the other, featuring the new ultra-cool sublime color, a new boro color that looks like UV or vaseline glass without the UV. The sublime sits over top of a cobalt base, and then you might notice that Calvin has snuck in a nice chunk of opal which rests underneath Eush's implosion. The opal shows up better in hand, but it's still subtle, which I find quite appealing. Awesome marble, and a very special one, don't miss it!!