Check the listing for details. 5 oz & 10 oz Round Gold Bar High Density Graphite Mold Combo - Silver Copper. Condition: New. Listed at 49.95 USD. This Mold is great for making old style loaf bars. Silver bar will be like 1/2 the weight of Gold. This is a 2 Cavity Combo Mold as shown in the photos. The 5 oz Cavity is apx 1-1/4" across the top and 3/8" deep, the 10 oz Cavity is apx 1-9/16" across the top and 1/2" deep.