John A. Sartin fabricated his Erosion Series pendant of 80/20 silver, sterling silver, and 14k and 18k gold. A fire opal erupts from the granulated center. He says the pieces in the series are inspired by erosion and volcanic activity, “with a secondary influence of personal growth.” 2 x 2 x 1⁄4 in. (51 x 51 x 6.5 mm). Photo by Margot Geist. This piece appeared in the September 2008 issue of Art Jewelry.