petscheckite

== English == === Etymology === This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term. ? + -ite === Noun === petscheckite (mineralogy) A trigonal-hexagonal scalenohedral black mineral containing iron, niobium, oxygen, tantalum, and uranium. ==== References ==== David Barthelmy (1997–2026), “Petscheckite”, in Webmineral Mineralogy Database.