Prima materia

In alchemy, Prima materia, materia prima or first matter, is the ubiquitous starting material required for the alchemical magnum opus and the creation of the philosopher's stone. It is the primitive formless base of all matter similar to chaos, the quintessence, or aether. Esoteric alchemists describe the prima materia using simile, and compare it to concepts like the anima mundi.

The concept of prima materia is sometimes attributed to Aristotle. The earliest roots of the idea can be found in the philosophy of Anaxagoras, who described the nous in relation to chaos. Empedocles' cosmogony is also relevant.

When alchemy developed in Greco-Roman Egypt on the foundations of Greek philosophy, it included the concept of prima materia as a central tenet. Mary Anne Atwood uses words attributed to Arnaldus de Villa Nova to describe the role of prima materia in the fundamental theory of alchemy: That there abides in nature a certain pure matter, which, being discovered and brought by art to perfection, converts to itself proportionally all imperfect bodies that it touches. Although descriptions of the prima materia have changed throughout history, the concept has remained central to alchemical thought.

Alchemical authors used similes to describe the universal nature of the prima materia. Arthur Edward Waite states that all alchemical writers concealed its "true name". Since the prima materia has all the qualities and properties of elementary things, the names of all kinds of things were assigned to it. A similar account can be found in the Theatrum Chemicum:

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