Answer: metallurgy

AnswerCrossword Clue
METALLURGYOne of the sciences.
METALLURGYArt of ore-refining.
METALLURGYAncient science
METALLURGYScience dealing with ores
metallurgyThe branch of science and technology concerned with the properties of metals and their production and purification
metallurgythe study of alloying and treating metals