A pentacle (also spelled pantacle in Thelema, following Aleister Crowley) is an amulet used in magical evocation, generally made of parchment, paper or metal (although it can be of other materials), on which the symbol of a spirit or energy being evoked is drawn.his form of pentacle is formed upon a disk which may be used either upon an altar or as a sacred space of its own. The pentacle is representative of the Earth in occult usage.