Answer:
Alchemy
Explanation:
Alchemy is the believe that base metals such as a copper, lead etc can be transmuted into gold.
The alchemists were in search of a magical piece that would enable them to make gold from base metals. They called this magical stuff 'the Philosopher's Stone'.
Modern science has discovered that lead can be turned into gold,without applying the methods of alchemy. Nuclear transmutation in particle accelerators can indeed change one element into another.
