Jewelry Inspiration! Colorized Crystal Clay with PearlEx Powder! What I love about this technique, Colorized Crystal Clay with Jacquard Pearl Ex Powdered Pigments, featured on the Nunn Design Blog - is that one designer’s pieces will come out contemporary in style, while another will be elegant. By simply changing the Castin’ Crafts Opaque Pigments used to colorize the Crystal Clay and by adding different colors of the Jacquard PearlEx Powder to the clay, the style of a unique piece of hand cr