明相惡

金惡水銀，銀惡生鐵及硇砂。金得銀而虚，銀得銅而疏，銅得鐵而强，得錫而俱。夫五金八石，皆惡餘甘子，及代赭不灰木，化一切金石爲水。若不得硝石，終無得理。夫鉛汞雌雄，兼一切金石伏火藥物，將火試之，火之不動，鼓之不流，色無精光，並不能變諸金石。

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Text and scans: Shidian Guji (Peking University – ByteDance open ancient texts). Edition details are given per book. Shidian Guji