Sulfur, also known as brimstone, is the active male counterpart to mercury’s passive female representation. In antiquity, it was used as traditional medicine in places ranging from China to Egypt to Europe. Sulfur’s symbol is typically a triangle atop a Greek cross, but it can also be represented by a Cross of Loraine atop an ouroboros/infinity symbol. This symbol has come to be known as Satan’s Cross and is sometimes used as a satanic symbol.