niobophyllite

铌叶石

释义与例句

n.
  1. 1.

    A triclinic brown mineral containing fluorine, hydrogen, iron, manganese, niobium, oxygen, potassium, silicon, sodium, and titanium.

    化学 地质

词源

For its composition of niobium, and Ancient Greek φύλλον (phúllon, “leaf”) for its foliated crystal habit, + -ite.

来源：wiktionary