『 An interest question. This magnetitum is iron oxide, uses in the alchemy of ancient time. It's not modern style and not takes in this time, cause it maybe have some more unknown side-effect. It indicates in mind as a Chinese herb-medicine, in the many physical properties of intermetallic. It would be true.』『 As for your question, it was described in pharmacopoeia. As like they said, I don't want to judge it. But another case should be helpful or get more references.』『 That's a legend in the ancient China, it says the emperor called all the chancellors some day. They were disussing why all the copper carillons in the palace were ringing at yhe same time that day.』『They all had no any idea about these, but one of the chancellors said: It must
