laachite

黑云透长岩

释义与例句

n.
  1. 1.

    A brown monoclinic mineral containing calcium, iron, manganese, niobium, oxygen, titanium and zirconium

    化学 地质

词源

Named after the type locality: den Dellen quarries, Mendig, Laach Lake volcanic complex, Rhineland-Palatinate, Germany Laach + -ite

来源：wiktionary