nenadkevichite

== English == === Etymology === Konstantin A Nenadkevich, Russian mineralogist, and -ite. === Noun === nenadkevichite (usually uncountable, plural nenadkevichites) (mineralogy) A rare silicate mineral containing niobium. === Further reading === David Barthelmy (1997–2026), “Nenadkevichite”, in Webmineral Mineralogy Database. “nenadkevichite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.