Prima materia, Latin for "first matter," is the formless original substance that alchemists believed underlies all things and from which the philosopher's stone could be made. Drawing on Greek philosophy, alchemical writers treated it as both the starting point of the Great Work and a deep mystery, giving it dozens of symbolic names. In the twentieth century Carl Jung interpreted it psychologically.
Prima materia at a glance
| Meaning | First matter (Latin prima materia or materia prima) |
|---|---|
| Tradition | Western alchemy, Hermeticism |
| Philosophical roots | Greek philosophy, especially Aristotle's concept of matter |
| Role | Starting material of the Great Work (magnum opus) |
| Symbolic names | Martin Ruland's 1612 lexicon lists more than fifty |
| Modern interpretation | C. G. Jung, Psychology and Alchemy |
Philosophical origins
Greek philosophers asked what the world is ultimately made of. Early thinkers proposed a single original substance such as water, air or the boundless (apeiron), while Empedocles described four elements. Aristotle developed the idea that every physical thing combines form with matter, and that beneath the four elements lies a matter with no qualities of its own, capable of receiving any form. Later commentators called this prima materia, first matter.
Alchemists adopted the idea because it seemed to make transmutation possible. If lead and gold share the same underlying matter and differ only in form, then stripping away one form and introducing another could in principle turn one metal into another.
Role in the Great Work
In alchemical theory the Great Work, or magnum opus, begins by obtaining the prima materia and reducing a substance back to it. Only from this undifferentiated state could the philosopher's stone be produced. Texts describe a sequence of stages marked by colors: the blackening (nigredo), the whitening (albedo), sometimes a yellowing (citrinitas), and the reddening (rubedo). The nigredo, a stage of decay and dissolution, was often identified with the return to first matter.
The work was carried out in vessels and furnaces such as the athanor, whose steady heat was believed to imitate the slow processes of nature. Practical recipes varied greatly, and no two authors agree precisely on the materials or steps.
A substance with many names
Alchemical writers insisted that the prima materia was everywhere yet overlooked, cheap yet precious, and they hid it under a bewildering range of names. The German physician Martin Ruland's alchemical lexicon of 1612 lists more than fifty, and the occult scholar Arthur Edward Waite later added many more. Names include:
- Mercury, water, dew, salt and lead;
- chaos, the dragon, the serpent, and the ouroboros, the serpent that devours its own tail;
- the virgin's milk, the stone and even dung, emphasizing that it was despised and found in common places.
This secrecy served several purposes. It guarded knowledge from the unworthy, reflected the belief that the substance could not be captured by a single name, and linked laboratory work with religious and cosmological symbolism.
Paracelsus and later alchemy
The Swiss physician Paracelsus (1493-1541) reshaped alchemy by adding salt to the older principles of sulphur and mercury, and he spoke of a primordial matter from which God created the world. His followers connected the prima materia with the chaos of Genesis, the waters over which the spirit moved. In the seventeenth century some alchemists sought it in rainwater, dew, clay or saltpeter, while others treated it as a spiritual reality known only through divine illumination.
Many of these ideas passed into Rosicrucian and Hermetic writing and influenced figures such as John Dee, whose Monas Hieroglyphica expressed a unified symbol of creation. Related legends include the alchemical creation of an artificial human, the homunculus.
Modern occultism and culture
From the nineteenth century onward, many occult writers treated alchemy mainly as a spiritual discipline, and the prima materia became a symbol of raw potential awaiting transformation. In this reading, the practitioner's own unrefined nature is the first matter that must be dissolved and remade. The tarot's Magician, with the four elemental tools before him, is often interpreted in the same spirit, as a figure who shapes raw material through will.
Chemistry, meanwhile, abandoned the idea of a single first matter after the rise of the modern theory of elements in the late eighteenth century. The prima materia survives instead in poetry, painting, fantasy fiction and psychology, as an image of chaos that holds every possibility.
Jung's psychological reading
The Swiss psychiatrist Carl Gustav Jung studied alchemical texts intensively and argued, especially in Psychology and Alchemy and Mysterium Coniunctionis, that alchemists projected unconscious psychological processes onto matter. In his interpretation the prima materia corresponds to the chaotic, undeveloped contents of the unconscious, and the stages of the work mirror the process of psychological integration he called individuation. The nigredo, for example, becomes a confrontation with one's darker side.
Historians of science note that this reading tells us more about modern psychology than about how most alchemists understood their own practice, which was often practical chemistry and medicine. Still, Jung's approach made alchemical symbolism, including the prima materia, widely known in art, literature and modern esotericism.
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Frequently asked questions
What is prima materia in alchemy?
Prima materia, or first matter, is the formless original substance that alchemists believed lay beneath all material things. They thought that by reducing a substance back to this state and then perfecting it through the stages of the Great Work, they could produce the philosopher's stone capable of transmuting metals.
Why does prima materia have so many names?
Alchemists deliberately concealed it under many names, such as mercury, chaos, dragon, serpent, water and dung. The secrecy protected their knowledge, expressed the belief that the substance was present everywhere and in everything, and tied laboratory work to religious symbolism. Ruland's 1612 lexicon alone lists more than fifty names.
How did Jung interpret prima materia?
Carl Jung saw the prima materia as a symbol of the unconscious in its chaotic, undeveloped state. In his view, the alchemical stages projected onto matter the psychological process of individuation, in which a person integrates hidden aspects of the self. Historians regard this as a modern reinterpretation rather than the alchemists' own view.
Sources and further reading
This entry replaces an article from the original Mystica encyclopedia (online since 2001). It was rewritten from the sources above by The Mystica Editorial Team under our editorial standards. Last reviewed: September 30, 2026.