🜍, the alchemical symbol for sulfur, represents one of the three primal principles (the Tria Prima) alongside Salt (🜔) and Mercury (☿). Etymologically derived from the Latin sulpur, its name in alchemical Latin is Sulphur; its symbol—a triangle surmounting a cross—visually encodes the union of spirit over matter, fire over earth, and the active principle over the passive. In traditional alchemy, sulfur is the fixed, fiery, and male aspect of the prima materia, the principle of combustibility, expansion, and coagulation.

Position on the Tree of Life

On the alchemical Tree of Life (scale step 2), Sulfur corresponds to Chokmah, the second Sephirah. Chokmah is Wisdom—the first outstreaming force from Keter, the dynamic, impelling energy of the universe. This pairing sets Sulfur as the active initiator of all metallic and spiritual coagulation. On this same scale, Keter (step 1) holds the undefined unity of Mercury; Sulfur is the first differentiated active principle that begins the work.

Astrological and planetary correspondence

The symbol’s triangle evokes the classical element Fire and the planet Mars (♂). In the astrological schema of the alchemical planets, each Sephirah receives a planetary seal. Here, at step 2, the associated planet is Mars—hot, dry, masculine, and aggressive. This validates Sulfur’s planetary signature as the force of initiation, separation, and metallic “soul” that must be fixed by the alchemist’s art.

Historical context

The Tria Prima of Salt–Sulfur–Mercury originates with the influential early alchemist Basil Valentine (pseudonymous, 15th–16th century) and was systematized by Paracelsus in the 16th century. Paracelsus taught that all matter was composed of these three principles: Sulfur governed the soul (anima), the combustible, odoriferous, and colored aspect of metals. In the Rosarium Philosophorum (1550) and other late medieval works, Sulfur is described as the “red king” that must conjoin with the “white queen” (Mercury). In the Emerald Tablet, Sulfur is the “wind in its belly” that carries the creative fire upward. As Chokmah, it is the unmanifest made manifest—the first explosion of light into form. The alchemist’s goal is to purify this Sulfur, to remove its coarse combustibility, and to render it a fixed, medicinal “Sulfur of the Wise” (Sulphur Philosophorum), which no longer burns but rather colors and perfects the Stone.

In the specific context of Liber 777, the alchemical Tree at step 2 shows this symbol as the direct equivalent of the Sephirah Chokmah. The symbol appears alone, without the planet or metal gloss, as a pure glyph for the active principle. This is the sulfur that is not yet the base yellow brimstone of the vulgar element, but the philosophical Sulfur—the fixed seed of the Stone that must first be extracted from the chaos of the prima materia.