Joe Boling writes: "Regarding minting coins of new alloys - forget it. Any such experiments in space will involve milligrams of metal. You will never see quantities brought back sufficient to go
into production - most likely never enough for even a single piece."
Bill Malkmus writes: Regarding Dick Johnson's article on going into outer space to try to alloy gold and aluminum - unless my rudimentary knowledge of metallurgy fails me, these two metals are
already commercially alloyed (and have been for over a century). I believe that a purple color can be obtained from that alloy.