alchemy: blue vitriol (vitriol of cyprus, roman copperas)

alchemy alchymia azoth blue bluestone book chalcanthite chalcanthum chalcocyanite chemical chemicals chemistry chrysopoeia copper copperas couperose crystals cuivre cupric cuprum cyprus elixir essence extract flowers formula grimoire herbs hermetic iatrochemie kabbalistic knowledge laboratory lapis life magic malachite medieval metals minerals mystery mystic occult philosophers philosophorum quintessence roman sign spagyric stone substance sulfate sulphate symbol tetrasomata transmutation vector vitriol zauberbuch