scorification
noun
sco·ri·fi·ca·tion
ˌskōrəfə̇ˈkāshən,
ˌskȯr-
plural -s
: the act, process, or result of scorifying
specifically : a process in assaying that involves the use of a scorifier and consists either of an oxidizing fusion of the ore or other product with lead and borax to produce a slag and leave the gold and silver in a lead button or of such a fusion of the lead button obtained either as above or by fusion in a crucible to reduce its size or purify it for cupellation
Word History
Etymology
scoria + -fication