alchemy: caput mortuum ("dead head")

alchemy alchymia and brown caput chemicals chemistry copper crocus crystals dead decay decline distillation egyptian elixir epitome ferrous formula grimoire haematite head hermetic iatrochemie iron kabbalistic laboratory lapis leftovers life magic magnum martis materia matters medieval metals minerals mortuum mummy mystery mystic nonvolatile occult ochre opus oxide oxidule philosophers philosophorum pigment prima remains residue rust sign spagyric stone stuffs sublimation substance sulphate symbol transmutation useless vector veneris worthless zauberbuch