Definition of mussite in US English:

mussite

noun

Mineralogy
historical
  • A mineral regarded as a variety of or identical with diopside.

Origin

Early 19th century. From French mussite from the name of MussaAlp, Tyrol, and its locality, where the mineral was first found + -ite.

Pronunciation

mussite

/ˈmʌsʌɪt/