The Emerald Tablet is a long-lost ancient artifact of no known location. It may provide a formula for producing the philosopher’s hammer, which can convert metals into gold, as well as the Hermetic Philosophy’s base.
It may also refer to the metaphysical counterpart, purification of the soul. After the fourteenth century, Arabic copies of its text made it known to the Christian world.
The real Emerald Tablet was a rectangular piece of art with a bas-relief cutout of the holy message in a Phoenician-style alphabet.