A new version of BCE chess sets was released this week, done in kerrock:
Kerrock is very hard, difficult to carve and even more difficult to polish. It takes 4 hours to polish a single knight to high gloss finish, but it is very well worth it. Here's a photo of lathe maestro Gregor Novak kerrocking:

And some more photos of the first set done, serial number BCE S1EK0144:

Pieces have a nice feel to them and play very interestingly as kerrock is very dense and heavy so there is no need for additional weights.

-Izmet