alchemy: sulfur (sulphur) / brimstone

alchemy chemistry sulfur sulphur brimstone sulphurium phlogiston paracelsus three primes chemical formula alchymia iatrochemie spagyric magic mystic hermetic kabbalistic medieval mystery witchcraft occult sign symbol philosophers stone laboratory elixir of life grimoire transmutation quintessence lapis philosophorum prima materia magisterium chrysopoeia tetrasomata synthesis red tincture zauberbuch magnum opus hieroglyphics chemicals substance minerals principal fundamental essential schwefel soufre azufre sulphides sulphates