alchemy: alkali / caustic (causticum)

alcali alchemy alchymia alkali alkaline alqali ashes burning calcined calcium caustic causticum chemicals chemistry compounds corrosive crystals elements elixir grimoire herbs hermetic hieroglyphics hydroxide iatrochemie kabbalistic kalium knowledge laboratory lapis life magic matters medieval metals minerals mystery mystic natrium occult philosophers philosophorum plant potassium quintessence salt saltwort sign sodium spagyric stone substance symbol synthesis transmutation vector zauberbuch