Picture, if you like, a workshop that could have existed in a dozen different centuries. Somewhere in it, an alchemist has scraped a crust of black residue from the bottom of a flask and is treating it as something valuable. He is not looking at gold. Gold is years away, if it ever comes at all. What he wants first is something most households would have swept into the gutter: greasy, foul, unremarkable to anyone who hasn’t read the right manuscripts.
No single manuscript hands us that exact scene, so take it as illustration rather than history. What the sources do hand us, again and again, is the paradox underneath it. Alchemists gave this starting substance a name, the prima materia, the first matter, and insisted that finding it counted among the hardest problems of the Great Work. Not because it was rare. Because, as one text after another put it, it had been sitting in plain view the whole time, and almost nobody could see it for what it was.
A Substance Nobody Could Agree On
Prima materia occupies an odd position in the alchemical imagination. It is often treated as something materially present and operationally accessible, yet at the same time it resists every attempt at a fixed definition. Writers describe it as the raw stuff from which the philosopher’s stone would eventually be coaxed, yet in the same breath they call it nameless, formless, and common as dirt.
One passage from the Theatrum Chemicum, a sprawling seventeenth century compilation of alchemical texts, tries to pin the concept down by refusing to pin it down at all. It gets compared to everything at once: to male and to female, to heaven and to earth, to body and to spirit, to chaos and to the confused mass out of which the world supposedly emerged. The author seems almost pleased by the contradiction. A substance that contains every color and potentially every metal, he writes, cannot really be reduced to a single description.
Part of this ambiguity appears to be deliberate. Alchemical writers had reasons to keep their central term slippery, ranging from traditions of guarded transmission to genuine philosophical caution about naming something that, in their view, existed prior to all naming. A reader hoping for a clean definition on page one of any classical treatise will usually be disappointed. What shows up instead is a pattern of comparison, of pointing sideways at something through a dozen partial images rather than describing it head on.
Aristotle’s Ghost in the Laboratory
The philosophical background to prima materia predates alchemy by centuries, though how directly it descends from Aristotle is itself a live question among historians of philosophy. Aristotle never devotes a tidy passage to defining a substance called prime matter, and whether he held any such concept in a fully worked-out form remains debated. What he does offer, clearly enough, is hylomorphism: the claim that everything which exists is a combination of matter, hyle, and form, morphe.
Burn a tree and it becomes ash; something has clearly changed, yet something must also have persisted across the change, or the ash and the tree would share no relationship at all. That framework, rather than any single Aristotelian doctrine of prima materia, is what later alchemical writers had available to build on, and modern scholarship is generally cautious about collapsing the alchemists’ varied theories of matter into one tidy Aristotelian lineage.
The term itself, prima materia, is Latin, and it seems to enter alchemical writing relatively late, plausibly around the twelfth century, through the wave of Latin translations drawing on earlier Arabic sources. The Testamentum Morieni, one of the texts credited with carrying Islamic alchemical theory into medieval Europe, describes a single root, a radix una, from which every element ultimately derives, though the dating and attribution of texts from that period stay genuinely contested and the surrounding Arabic corpus is itself tangled up with questions of pseudonymous authorship. The general picture, Latin alchemy absorbing and relabeling ideas that had circulated earlier in Arabic, is on solid ground even where the precise timeline is not.
Aristotle himself was building on older ground. Anaxagoras had already speculated about a primordial mixture from which an ordering intelligence, the nous, drew out distinct forms, and Empedocles had his own account of elements combining and separating under the push and pull of love and strife. None of these earlier philosophers were doing chemistry in any sense a modern reader would recognize. They were trying to answer a much older question: what has to exist before anything else can exist. Alchemy inherited versions of that question and brought them into a tradition increasingly concerned with the transformation of material substances.
Fifty Names for One Thing
By the early modern period the proliferation of synonyms had become almost absurd. Martin Ruland the Younger, compiling his 1612 Lexicon Alchemiae, lists more than fifty different names alchemists had used for the prima materia over the centuries, along with his own attempts to justify each one. Not all fifty are doing the same job, though, and it helps to sort them before reaching for any of them as evidence of what the first matter actually was. A handful give a sense of the range:
- Philosophical terms borrowed from cosmology, chaos, hyle, massa confusa, pointing to formlessness as a category rather than a substance
- Symbolic creatures, the serpent, the dragon, the green lion, standing in for raw, unstable vitality rather than naming any literal animal or mineral
- Practical candidate substances, mercury, antimony, lead ore, that some alchemists genuinely believed the sources meant literally
- Allegorical human figures, Adam, the mother, the virgin, framing the concept as origin rather than as any material at all
Treated this way, the list stops looking like fifty interchangeable guesses at one hidden ingredient. Carl Jung, who studied this literature closely in the twentieth century, put it bluntly: the alchemists talk about the prima materia as though they know exactly what it is, while making it perfectly clear, through the sheer volume and variety of names, that they don’t. Confusing a symbolic label with a chemical candidate therefore risks flattening distinctions the vocabulary itself preserves.
Chaos Before the First Word
Underneath the alchemical vocabulary sits an older cosmological instinct, one that has nothing to do with metals at all. Ancient creation stories tend to open with an undifferentiated mass, a condition prior to shape, prior to light, prior to the separation of one thing from another. Genesis describes the earth as without form and void, with darkness over the face of the deep, before any act of ordering begins.
Alchemical writers leaned on that same image deliberately. Their massa confusa is a small, private version of the cosmic chaos that existed before creation, and working the prima materia in the laboratory became, for some of them, a way of re-enacting the original act of world-making on a bench top scale.
Zosimos of Panopolis, writing in Greco-Roman Egypt around the year 300, is among the earliest surviving voices to fold this cosmology into something resembling practical technique, though what survives under his name reaches us as scattered fragments rather than a finished treatise, and modern scholarship is cautious about reading a single, systematic doctrine into it.
What the fragments do show clearly enough is visionary language, bodies dissolving and being reconstituted, borrowed in part from Egyptian temple ritual and the death-and-resurrection imagery associated with Osiris. In Zosimos’s surviving writings, the raw material being worked was rarely treated as just ore. It carried some of the weight of a soul passing through death toward a purified form, with the anima mundi, the world soul thought to animate all matter, never entirely out of frame.
Later readers have sometimes credited Zosimos with a tidy structural theory, a shared bodily substrate across all metals, the soma, distinguished only by a subtler animating quality, the pneuma. That framing is a useful shorthand for a question the whole tradition kept circling back to, how much of a metal’s identity is fixed and how much is closer to a surface layer over something more malleable underneath, but it should be taken as a later synthesis of scattered material rather than a doctrine Zosimos laid out in any single surviving passage.
What Actually Went Into the Vessel
The historical record offers no single consistent answer to what alchemists used as prima materia in practice. Different schools of alchemy proposed genuinely different candidates for what the prima materia was in practical, physical terms, and they rarely agreed with one another.
In the Islamic tradition, the Jabirian corpus, the large body of Arabic alchemical writing attributed to Jabir ibn Hayyan though almost certainly the product of more than one hand over an extended period, built an influential theoretical system around two exhalations rising from within the earth, one earthy and one watery, which cooled into sulfur and mercury respectively. Every metal, on this account, formed from those two principles combining in different ratios and different degrees of purity. Since sulfur and mercury supposedly generated everything else, one or both often functioned as a practical stand-in for the first matter itself. Later Islamic and European alchemists occasionally added a third principle, salt, producing the tria prima that Paracelsus would popularize centuries afterward.
Other practitioners rejected any single named substance and insisted the prima materia had to be discovered fresh each time, hidden inside something the world had already discarded. Lead ore, antimony, dew collected at dawn, even human waste and menstrual blood turn up across different manuscripts as candidates, each defended with its own logic and its own scriptural or philosophical justification. Such disagreements reflect the absence of a fixed recipe across the surviving texts, many of which resist identifying a single universally valid substance.
Muhammad ibn Zakariya al-Razi, the physician and alchemist working roughly a century after the earliest Jabirian material, approached the question with a more inventory-minded temperament, cataloguing minerals, salts, and derived substances with a precision that reads almost like a modern chemistry manual. Even so, al-Razi’s classificatory instinct developed within a broader search for principles underlying the observable variety of matter.
Contemptible Matter, Hidden Treasure
There is a recurring, almost stubborn insistence running through this literature that the first matter has to look worthless. Vile, contemptible, thrown on the dung heap, the sources repeat, using language that borders on relish. It is cheap as dirt and can be found everywhere, yet almost nobody recognizes it for what it is.
That vocabulary was not incidental. Describing the prima materia as despised and common rather than rare and precious served a specific function inside the texts themselves: it discouraged the casual reader from hunting for something exotic, and it justified working with substances, dung, urine, base ores, that a purely status-driven search for the marvelous would have skipped past entirely. The humility of the material was, within the logic of the tradition, part of what qualified it for the role.
Where Prima Materia Stops and the Stone Begins
The distinction between prima materia and the philosopher’s stone is essential, even though alchemical texts do not always maintain it consistently. Prima materia names a condition: unformed, homogeneous, without distinguishing qualities, the state matter occupies before the Work has touched it at all. The philosopher’s stone names an endpoint, the fully perfected result of a long sequence of operations performed on that raw condition.
Several manuscripts go further and claim the two are secretly one substance viewed at opposite ends of a single process, an idea sometimes compressed into the phrase that everything is made from one thing, the unum. Whether that identity should be taken literally or read as a poetic flourish is a question the sources leave open, and one this article won’t try to settle here, since the mechanics of multiplication and projection, along with the historical cases built around them, belong to the companion piece on the Philosopher’s Stone rather than to the starting condition covered in this article.
Jung’s Raw Material of the Psyche
Carl Jung’s engagement with alchemical literature in the twentieth century produced one of the more influential rereadings of the prima materia concept, and it deserves attention on its own terms rather than as a footnote to the historical material.
In his ETH Zürich lectures of the 1930s, Jung argued that the alchemists were, largely without realizing it, projecting the contents of their own unconscious onto the substances in front of them. When a text says the prima materia is found everywhere yet recognized by no one, Jung heard a precise psychological description: the raw, unexamined material of a person’s inner life is likewise everywhere in ordinary experience, and almost impossible to see clearly from the inside. He treated the alchemist’s search through matter as a search conducted, unknowingly, within the self.
The Jungian analyst Edward Edinger later extended this reading in a clinical direction, describing the prima materia as the psychological condition of pure, undifferentiated potential, the state a person returns to whenever an old identity has broken down and nothing new has yet taken its place. That reading does not replace the historical, laboratory-based understanding of the term. It runs alongside it, offering a second vocabulary for the same paradox, one built from dream material and clinical case histories rather than furnaces and retorts.
The direction of Jung’s argument matters. He was not claiming that medieval alchemists secretly understood modern depth psychology and encoded it for later discovery. His argument ran the other way. Working with unfamiliar, resistant matter in a laboratory tends to stir up unconscious material in the person doing the work, whether or not that person has any interest in psychology, and some of what got written down as chemical observation was, in his reading, colored by exactly that stirred-up material. The alchemist who describes the prima materia as tantalizing, evasive, cheap yet impossible to grasp, is in Jung’s account describing his own mind as much as anything sitting in the vessel.
In many later accounts, the initial transformation of the prima materia became associated with blackening, or nigredo, marking the opening phase of the Great Work. The details of that operation, and everything that follows through the Magnum Opus, belong to a different article in this series.
A Concept That Outlived the Furnace
The laboratories are gone, and almost nobody today is hunting for lead ore or dawn dew to place in a retort. The term survived anyway, drifting into psychotherapy, creative writing advice, and coaching language, usually to describe whatever raw, unshaped material a person or a project starts from before any real work has been done on it. The metaphor traveled because the paradox at its core, value hiding inside something unremarkable, never really belonged to alchemy alone.
The historical record supports a considerably narrower interpretation than the modern self-help use of the term. Across several centuries and linguistic traditions, alchemists kept returning to the same insistence: the substance they needed was common, contested, described in dozens of contradictory ways, and never handed over with a clean definition attached. Recognizing it was treated as an achievement in itself, separate from and prior to any of the operations that followed. Whatever the prima materia turns out to have been for any given practitioner, that much of the record holds up.
References
- Abraham, Lyndy. A Dictionary of Alchemical Imagery. Cambridge: Cambridge University Press, 1998.
- Edinger, Edward F. Anatomy of the Psyche: Alchemical Symbolism in Psychotherapy. La Salle, IL: Open Court, 1985.
- Jung, C. G. Psychology and Alchemy. 2nd ed. Princeton: Princeton University Press, 1968.
- Linden, Stanton J., ed. The Alchemy Reader: From Hermes Trismegistus to Isaac Newton. Cambridge: Cambridge University Press, 2003.
- Mertens, Michèle. Les Alchimistes grecs. Tome IV, 1re partie: Zosime de Panopolis, Mémoires authentiques. Paris: Les Belles Lettres, 1995.
- Principe, Lawrence M. The Secrets of Alchemy. Chicago: University of Chicago Press, 2012.
- Ruland, Martin. Lexicon Alchemiae Sive Dictionarium Alchemisticum. Frankfurt, 1612.
- Taylor, F. Sherwood. The Alchemists: Founders of Modern Chemistry. London: William Heinemann, 1951.