Sophist
You mean this? I think it's also been interpreted as female reproductive organs. If that's not what you're thinking of, I can have a looksee at my "Offerings to Isis" book and see what matches that description. There were tonnns of different amulets in use in AE. I only wish I knew how to cut raw gems in the shapes of some of those amulets.
Yeah, that's the one, although the one I was looking at wasn't as nice.
You might be able to get away with making them out of something like Sculpy and inlaying them with the appropriate gems, at least for a start.
rmcdra, according to The Crystal Bible, it relieves emotional and mental stress, as well as aligns you with a higher power (then again, almost every stone in that book claims to align you with a higher power.)