Do you want to compare Amethyst with Mercury? Discover the powers, weakness & weapons of Amethyst and Mercury from Amethyst Biography and Mercury Biography. Find out all about Amethyst and Mercury.# Check out how is Amethyst unique and distinct from Mercury. Discover their love interest, sidekicks, family tree and the movies and games list in which Amethyst and Mercury have appeared. Find out everything about them here!