Glassmaster Scott Pernicka's fabulous Jubilee Gala Dichroic Vortex.  Multiple colors for a rainbow effect, spiraling into a deep vortex. Brilliant sparkles, nice detail, one of a kind. Artist signed and dated "06".  Large size approximately 2.91" diameter.  Scott's marbles need to be seen in person to truely appreciate this "Unique Artist's Designs".