ˈrediŋtəˌnīt noun
( -s )
Etymology: Redington mercury mine, Napa county, Calif. + English -ite
: a mineral approximately (Fe 1 Mg 1 Ni)(Cr,Al) 2 (SO 4 ) 4 .22H 2 O consisting of a hydrous sulfate of iron, magnesium, nickel, chromium, and aluminum that is possibly a chromium halotrichite