6 oz Graphite Crucible Propane Kwik Kiln Furnace Torch Melting Gold Silver Copper 6 oz Gold Graphite Crucible Mini Cup Designed to be used with up to 6 ounces of Gold. This crucible can also be used with Silver, Copper, Aluminum, Brass and other metals. Dimensions - Outer - 1.45" (36 mm) Dia. x 1.39" (35 mm) Height Inner - .861" (22 mm) Dia. x 1.065" (27 mm) Depth Wall Thickness .288" (7 mm) This product works great with the KWIK KILN Furnaces found in our store.