Chrysopoeia is simply a word utilized by alchemists for transmutation (transmutation) of lead into gold. Alchemists noted that inexpensive and commonly occurring lead has a akin density to gold, and on this basis they tried to make a method of converting 1 material into another. After many centuries of investigation and improvement of science, humanity has learned that lead and gold are different elements and chemical methods it will not be possible to turn 1 into another.