“Madagascan Agate” has been confusingly given to two different materials: a heated black, white, and red agate (commonly sold as sardonyx) and a naturally colored agate with muted colors. The latter is typically yellow, brown, or tan with touches of red, black, and white. It is also known as rainbow agate.
In the Epic of Gilgamesh, it was said that in the garden of the Gods, dewdrops were made of agate. The Celts associated it to Ceridwen or Kerridwen, Goddess of death and fertility. And in ancient China, it was believed that agate came from the brain of a fossilized horse.
Since these stones are born of fire it is said they bring passion in creative ways and aid universal understanding, allowing us to find a deeper meaning to life. Madagascan agate is also know to have a slow, steady stabilizing effect on health, healing wounds whether they are physical, mental, emotional, or spiritual. Agate is a stone reminder to be loving and compassionate in all of our actions.