alchemy: lemon acid (citric acid)

acid acidum alchemy alchymia balsam book calcium chemical chemicals chemistry chrysopoeia citrate citreorum citric citrus crystals deed elements elixir essence extract formula fruits great grimoire herbs hermetic iatrochemie kabbalistic knowledge laboratory lapis lemon lemons life limes magic magisterium magnum materia medieval metals minerals mystery mystic occult opus philosophers philosophorum prima quintessence sign spagyric stone substance symbol synthesis tetrasomata transmutation vector work zauberbuch