For generations, humanity has chased the promise of wealth, cure‑alls, and even the ability to wipe away painful memories. Across cultures, these pursuits gave rise to a host of mysterious mythical substances that were said to wield incredible power.

Mysterious Mythical Substances and Their Legends

10 Lyngurium

The earliest mention of a gemstone called lyngurium comes from Theophrastus of Eresus, the third‑ or fourth‑century BC scholar often hailed as the first lapidary. He described it as nothing more exotic than solidified lynx urine.

Even though the original texts painted the stone as a yellow, clear gem with almost magnetic qualities, medieval lapidaries kept the legend alive, insisting that wild lynx urine produced a superior stone to that of a tame animal. They even claimed that males yielded darker stones than females, and that the elusive lynx would bury its treasure.

According to the lore, the stone could act on non‑metallic objects—straw, leaves, you name it. It was also credited with curative powers: soaking it in liquid that was then drunk supposedly dissolved bladder stones and cured jaundice, and some claimed that simply gazing at the stone could heal the viewer.

Later medieval writers added ever‑bolder claims, such as the ability to change a person’s gender entirely. By that era, lyngurium was said to protect both house and inhabitant from harm and to be especially effective against stomach and digestive complaints.

Those fortunate enough to locate a stone were instructed to soak it in warm cow’s or sheep’s milk for fifteen days. However, attempting to use it for any ailment other than its famed cures was warned to cause the user’s skull to shatter.

Theophrastus even categorized lyngurium as a “gendered stone,” noting that male specimens were darker. While Pliny dismissed the stone’s existence, the minority voice persisted, and medieval writers added a myth that the lynx kept its gems in its throat out of spite for humanity.

9 Azoth

Azoth is a slippery concept. The term originated with Paracelsus, who used it to denote a universal remedy—sometimes identified with mercury, other times with a base quality present in every metal. Some scholars even suspect that Paracelsus meant his famed laudanum when he spoke of azoth.

In the 1920s, Manly P. Hall tackled the mystery in his massive work The Secret Teachings of All Ages. He proposed that azoth existed alongside the classic alchemical trio of salt, mercury, and sulfur, forming compounds where one aspect dominated each mixture.

Various theories floated around: perhaps azoth was invisible, perhaps it was a form of electricity, magnetism, or an eternal fire. It was also linked to the celestial sphere of Schamayim—the manifestation of the Word of God—where fire birthed the Sun, water created the Moon, and the remainder was azoth, the universal mercury that birthed life.

8 Ambrosia And Nectar

Ambrosia is best known as the food of the Greek gods, the substance that granted them immortality. When the divine feasted, the food transformed into ichor—golden blood that coursed through their veins.

Legend says that feeding ambrosia to a divine child like Apollo caused instant growth into adulthood. In mortal affairs, Homer’s Iliad recounts Patroclus donning Achilles’ armor; after his death, the nymph Thetis used ambrosia to preserve his body from decay until Achilles could arrange a proper burial.

Mortals who tasted ambrosia were said to become infinitely beautiful—Athena famously offered Penelope a sip of the divine fare.

The exact nature of ambrosia remains a mystery. Some traditions describe it as fermented honey, others link it to grape wine, and a few suggest it might be the hallucinogenic fly agaric mushroom (Amanita muscaria).

Even the satyrs and centaurs held an annual “Ambrosia” feast, often depicted with mushrooms among the revelers, hinting at a possible mushroom connection.

7 Orichalcum

Gamers may recognize orichalcum from the Elder Scrolls series, but the metal’s mythic roots stretch back to Homer and Plato. Both writers used the term to describe an unknown metal supposedly forged by Atlanteans.

Plato claimed that orichalcum was the source of Atlantis’s riches, second only to gold. He described its hue as “the colour of fire,” and other ancient sources tied it to deities like Aphrodite.

One medieval source, De mirabilibus auscultationibus, said the metal resulted from mixing copper with a special earth found only in the Black Sea. By Roman times, the name evolved to aurichalcum and was associated with gold.

Scholars have long debated its real‑world counterpart—phosphoric bronze, various copper alloys, you name it. According to legend, Cadmus, founder of Thebes, invented it.

In 2015, divers recovered thirty‑nine ingots from a 2,600‑year‑old shipwreck off Sicily. Analyses showed they were 75‑80 % copper, 15‑20 % zinc, with trace iron, lead, and nickel—suggesting decorative use and confirming that at least part of Plato’s tale held water.

6 Unspoken Water

Scottish folklore holds that unspoken water is a cure‑all for any illness. To collect it, one must remain silent at dawn or dusk while drawing water that flows beneath a bridge used by both the living and the dead.

Once brought home, the water can be used in several ways. Some traditions dictate that the patient drinks three sips before any word is spoken in the house. Others advise sprinkling the water around the dwelling to summon its purifying force, and occasionally the vessel itself is cast over the roof.In certain recipes, unspoken water is boiled with eggs, which are then eaten for breakfast. The potency of the water is said to stem not only from the location but also from the silence of the collector.

5 The Moon Rabbit’s Elixir Of Life

Chinese mythology tells of a Moon Rabbit who, after the Buddha appeared as a starving sage, offered its own body as food by leaping into a fire. Grateful, the Buddha placed the rabbit on the Moon, where it now concocts the elusive elixir of life, mixing ingredients on a toad’s head.

Another tale links the rabbit to Chang e, the wife of the archer Hou Yi. After Hou Yi received a magic elixir for shooting down nine of ten suns, Chang e drank it and was banished to the Moon. There, the rabbit was tasked with brewing the elixir for the immortals and for Chang e herself.

The creature is also known as the Jade Rabbit or Gold Rabbit, and some legends say it is attempting to create a pill that will allow Chang e to return to Earth.

4 The Net

Isaac Newton, famed for his laws of motion, was also a secret alchemist. Recent scholars have decoded his notebooks and managed to replicate parts of his work.

Newton, like many alchemists, pursued the philosopher’s stone. He believed that a crucial component was a substance he called “the net,” a name derived from his theory that Greek myths encoded alchemical recipes.

One such myth describes Hephaestus forging an invisible net to trap Aphrodite and Ares in the act of adultery. Newton interpreted this as a recipe for a basic ingredient of the philosopher’s stone.By combining the myth with the work of American alchemist George Starkey—who created an alloy of antimony and copper—Newton produced a material whose surface displayed crystalline rays, which he saw as evidence of progress toward the philosopher’s stone.

3 Toadstones

The toadstone was believed to be an actual stone harvested from a toad’s head. The idea originated in the second century with Kyranides, who claimed that toads secreted a substance that solidified into a stone stored in their skulls.

Harvesting methods ranged from the benign—waiting for a toad to spit it out—to the gruesome—placing the toad among flesh‑eating ants until only the stone remained.

Early gem manuals and European paintings featured the toadstone, until Agostino Scilla recognized that these “stones” resembled fossilized fish teeth. This revelation undermined the myth, as the supposed magical powers were thought to derive from the toad’s poisonous secretions.Nevertheless, the stone was believed to cure poison‑related ailments when applied to the skin, and swallowing it was said to heal stomach and digestive disorders. After use, the stone could be set into jewelry for continued protection, and it was even thought to shield newborns from fairy abduction.

Toadstones were prized enough to appear in royal treasure inventories.

2 Dragon’s Teeth

Cadmus, the legendary founder of Thebes, is also linked to the myth of dragon’s teeth. After receiving divine instructions to follow a particular cow to its resting place, Cadmus needed to sacrifice the animal, but the ritual required lustral water guarded by a dragon‑like creature.

Upon slaying the beast, Cadmus was told to plant its teeth. From these teeth sprang a legion of armed warriors who immediately began fighting each other until only five survived—the Spartoi, who went on to establish the noble houses of Thebes.

The motif reappears in the tale of Jason and the Golden Fleece. When Jason approached King Aeëtes of Colchis, he was given some of Cadmus’s dragon teeth. Sowing them produced a field of warriors whom Jason had to defeat, sometimes by throwing rocks to incite infighting, or by using ointments from Medea that rendered him invulnerable.

1 The Water Of Lethe

In Greek mythology, Lethe is the river of forgetfulness that flows solely in the underworld. Plato first described its power: anyone who drank its waters would lose all memory. However, the effect did not apply to those who had committed crimes in life; their guilt‑laden memories persisted as torment.

Plato also suggested that Lethe’s waters enabled rebirth. After death, a soul would drink, have its memories erased, and then be reincarnated with a clean slate—except for the cursed Aithalides, son of Hermes, who retained an unbreakable memory across lifetimes.

Even the living sometimes used Lethe’s water. Supplicants at the oracle of Trophonios in Lebadeia were instructed to drink from a spring fed by Lethe to clear their minds of extraneous thoughts before receiving divine guidance. A second spring, similarly fed, allowed them to remember the oracle’s instructions, mirroring the function of the underworld’s Lake Mnemosyne.