redingtonite
noun
red·ing·ton·ite
| \ ˈrediŋtəˌnīt\
plural -s
Definition of redingtonite
: a mineral approximately (Fe1Mg1Ni)(Cr,Al)2(SO4)4.22H2O consisting of a hydrous sulfate of iron, magnesium, nickel, chromium, and aluminum that is possibly a chromium halotrichite
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