alchemy: Æther (quinta essentia)

aether aetherum alchemy alchymia aristotelian book chemical chemicals chemistry chrysopoeia classical corpus cosmos deed diethyl element elements elixir essence essentia ether extract fifth formula great grimoire herbs hermetic iatrochemie kabbalistic knowledge laboratory lapis life luminiferous magic magisterium magnum materia medieval mystery mystic occult oil opus philosophers philosophorum prima primary pure quinta quintessence quintum sign spagyric stone substance sweet symbol synthesis tetrasomata transmutation vector vitriol zauberbuch