Definition of westerveldite in US English:

westerveldite

noun

Mineralogy
  • An arsenic-containing mineral which occurs as microscopic brownish or silvery crystals typically forming inclusions in other minerals.

Origin

1970s. From the name of Jan Westerveld, Dutch geologist + -ite.

Pronunciation

westerveldite

/ˈwɛstəvɛldʌɪt/