Jet is organic in origin, and is also known as black amber, although it is not actually an amber, but rather fossilized wood. Like coal it is formed by the remains of wood that has been immersed in water for millions of years, then compacted and fossilized. When burned or touched with a hot implement, it often exudes the characteristic smell of coal.
It was used extensively in mourning jewelry in Victorian times due to its somber color and modest appearance. This stone has long been considered a stone for alleviating and bringing grief to the surface to be healed.
Medieval healers believed that burning jet was a cure for fevers and all manner of different illnesses. It has been mined since 1400BC and worked pieces of jet have been found in prehistoric burial mounds. In the 16th century jet was used to create rosary beads for monks, as it was told that the gemstone would invoke the favor of God, the Greeks believed that wearing jet would ensure the favor of Gods, and the Pueblo Indians buried the gemstone with their dead, as it was believed it would protect them in the after life.