niobophyllite

== English == === Etymology === For its composition of niobium, and Ancient Greek φύλλον (phúllon, “leaf”) for its foliated crystal habit, +‎ -ite. === Noun === niobophyllite (mineralogy) A triclinic brown mineral containing fluorine, hydrogen, iron, manganese, niobium, oxygen, potassium, silicon, sodium, and titanium. === Further reading === David Barthelmy (1997–2026), “Niobophyllite”, in Webmineral Mineralogy Database. “niobophyllite”, in Mindat.org‎[1], Hudson Institute of Mineralogy, 2000–2026.