Arakiel is a fallen angel, the second mentioned of the 20 Watcher leaders of the 200 fallen angels in the Book of Enoch, who taught the "signs of the earth" (which suggests geomancy) to humans during the days of Jared.
Arakiel is also called Aretstikapha (meaning "world of distortion" [the combination of arets + kaphah]) in Chapter 69. His name is generally translated as "earth of God"; the combination of araq-earth (Babylonian in origin) and El-God.
He is listed as a combination of two names “the land of the mighty one” or “the land is mighty”. Indeed, Arakiel is powerful geokinetic, and likely one of the more masterful ones when it comes to such a power. As such, he is the angel that taught the humans the many minerals that grow beneath and upon the Earth.