Philosopher’s stone

A legendary alchemical substance believed to transform base metals into gold and, in some traditions, produce an elixir of life.

Chrysopoeia: The alchemical practice or goal of making gold from less valuable materials. The stone was imagined as the agent that made this gold-making possible.
Zosimos of Panopolis: A Greek-speaking Egyptian alchemist whose writings are among the earliest surviving alchemical texts. His work preserves early ideas about alchemical transformation that preceded the medieval stone tradition.
Nicolas Flamel: A fourteenth-century Parisian scribe later celebrated in legend as an alchemist who discovered the philosopher’s stone. Later stories turned Flamel into the stone’s most famous supposed possessor.
Nuclear transmutation: The conversion of one atomic nucleus into another through nuclear reactions. Modern nuclear reactions can change elements, unlike the stone’s unsupported chemical transmutation.
Carl Jung: A Swiss psychiatrist who founded analytical psychology and interpreted alchemical images as expressions of psychic processes. Jung read the stone as an image of psychic wholeness and individuation.
Elixir of life: A legendary substance believed to extend life or confer immortality. Some traditions attributed life-prolonging powers to the philosopher’s stone.
Jābir ibn Ḥayyān: A name associated with a large Arabic alchemical corpus influential in medieval theories of metals. Texts attributed to Jābir helped transmit theories of metallic composition and transmutation.
Paracelsus: A sixteenth-century physician and alchemist who promoted chemical remedies and a reform of medicine. His writings linked alchemical transformation with medicine and the preparation of remedies.
Alchemy: A historical body of practices and theories concerned with transforming matter and understanding nature. The philosopher’s stone is one of alchemy’s central goals and symbols.
Individuation: In Jungian psychology, the process of integrating conscious and unconscious aspects of the personality. Jung connected the stone’s completion imagery with the achievement of psychic integration.

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