I am thinking of making silver/copper mokume gane. I have bought pure
99.99% copper to cast it on sheet. I have tried to melt it in
crucible but there is the problem. Metal has started melting in to
bigger lumps but then it stopped. I have big propane torch that can
reach 1800C so it isnt temp problem. I have added HUGE ammount of
brax so it isnt problem too. Any ideas how to solve that problem?