What element did the alchemist think that Stone could change?

The alchemist believed that the Philosopher's Stone could change base metals into gold. This was the primary goal of alchemy, and the Stone was seen as the key to achieving it.

While this is the most well-known aspect of alchemy, the Philosopher's Stone was also believed to have other powers, such as:

* Creating the Elixir of Life: A substance that could grant immortality.

* Healing diseases: The Stone was thought to have potent medicinal properties.

* Spiritual enlightenment: Some alchemists believed the Stone could lead to a higher state of consciousness.

It's important to note that these ideas were based on mystical and philosophical beliefs rather than scientific evidence.