This master marble is from Mark's Geometric series, each one of these a sweet piece of marble history! These incredible patterned marbles are made using the graal technique, with black glass layered over white and then the pattern meticulously laid on the marble and blasted away, then completed with a thick layer of crystal dipped and laid over the pattern which makes the whole thing absolutely pop in hand. This is an ultra classic design from Mark, so fun, so clean, and the top pattern of the marble is as fun to look at as the side pattern. I love this one, hard to let go of! Signed 'Matthews 2004'.