Translation of "Crisol" in English

"Mira el vaso alquímico", exclamó; "algo puro y pesado está brillando en el crisol." Con mano temblorosa lo levantó y exclamó emocionado: "¡Oro, oro!"

"Look at the alchemic glass," he cried; "something glows in the crucible, pure and heavy." He lifted it with a trembling hand, and exclaimed in a voice of agitation, "Gold! gold!"