The Jacinth, or Hyacinth, is a red variety of zircon. Its list of folkloric properties is short, but nonetheless interesting. First it is said to ward off pestilence, and would change color when someone in the vicinity has the plague. Second it is said to have the power to unravel sorceries and enchantments, this was usually done by tracing various symbols with the stone. Third it is said to grant sleep, which is a peculiar trait not often associated with precious stones, especially red ones. And finally it was supposed to grant protection from lightning.