Aratron

Aratron is an Olympian spirit in the grimoire known as the Arbatel de magia veterum. He rules over Saturn.

ARATRON governs those things which are ascribed astrologically to Saturn. He can convert any living organism, plant or animal into stone, and that in a moment of time; he can also change coals into treasure and treasure into coals; he gives familiars and reconciles subterranean spirits to men; he teaches Alchemy, Magic and Medicine, imparts the secret of invisibility, makes the barren fruitful and, lastly, confers long life.

— Arthur Edward Waite, The Book of Black Magic[1]

Seal of Aratron