Definition of neotantalite in English:

neotantalite

noun

Mineralogy
  • A mineral found as yellow octahedra which was formerly thought to be dimorphous with tantalite but is now considered to be a variety of microlite.

Origin

Early 20th century; earliest use found in Mineralogy Magazine. From neo- + tantalite, after French néotantalite.

Pronunciation

neotantalite

/ˌniːə(ʊ)ˈtantəlʌɪt/