The three primes, also known as the tria prima, were named by Paracelsus, a Swiss philosopher, in the 16th century. He believed the tria prima contained all the poisons that caused disease, and that by studying them, alchemists could learn how to cure disease. He also believed the tria prima defined humans, and he assigned each of the elements to a different part of the human identity.

The Three Primes

Mercury

Sulfur

Since the beginning of alchemy, alchemists have used symbols to represent different elements. Alchemy symbols sometimes contain hints of the qualities the element was thought to have, as well as the history of the element. Using symbols helped alchemists keep their work secret from non-alchemists who wouldn’t recognize the symbols. Because early alchemy also drew much of its information from astrology, many alchemy element symbols are connected to planets or other celestial bodies. Alchemy symbols continued to be used until the 18th century, becoming more standardized as time went on.

How Have Alchemy Symbols Been Used?

Salt is now known to be a chemical compound comprised of sodium and chloride, but alchemists believed it was a single element. Salt represents the body, as well as physical matter in general, crystallization, and condensation. Salt is often impure when first collected, but through chemical processes it can be dissolved and purified, which some alchemists compared to purification processes the human body can undergo. Its symbol is a circle bisected by a horizontal line.

Salt

Sulfur represents properties such as dryness, heat, and masculinity. In alchemy, it could also represent evaporation, expansion, and dissolution. In terms of human body, it represented the soul. In terms of the tria prima, sulfur was seen as the middling element connecting salt (high) and mercury (low).Sulfur’s symbol is typically a triangle atop a Greek cross (seen above), but it can also be represented by a Cross of Loraine atop an ouroboros/infinity symbol. This symbol has come to be known as Satan’s Cross and is sometimes used as a satanic symbol.

Sulfur

Salt

Alchemy is an area of study, sometimes described as a science, sometimes described as a branch of philosophy, that was practiced in Europe, Asia, and Africa. Alchemy originated in the early centuries AD, primarily in Egypt, Greece, and Rome, but eventually spread as far as India, China, and England by the 12th century.

What is Alchemy? 

Mercury (which is also one of the seven planetary metals) can mean both the element and the planet. In either case, this alchemy symbol represents the mind, as well as a state that could transcend death. In ancient times, mercury was known as quicksilver, and it was believed to be able to shift between liquid and solid states. Therefore, in alchemy, mercury was believed to shift between life and death.

Mercury 

The symbol for the philosopher's stone

What are alchemy symbols? Check out our complete guide to the most important alchemy symbols and meanings.

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