5 OZ Graphite Crucible Ingot Bar Combo Mold For Silver .
Our high pure graphite crucibles are mainly used for melting gold, silver and other precious metals, or used in the lab for anlysis, we are high pure,high density, high compressive strength, density can reach 1.88-1.90g/cm3, Fixed carbon 99.Aug 07, 2014 · Great forum. What would happen if you heated and glazed the mold with Borax before melting gold? Also, can you simply melt gold in a porcelain crucible (such as a Coors) and then pour into a graphite ingot mold? What I'm trying to do here is to refine my own placer gold and then pour 1 gram bars as gifts for the grandkids. Thanks again.