Definition of fairfieldite in US English:

fairfieldite

noun

Mineralogy
  • A phosphate mineral typically found as greenish or yellowish-white prismatic crystals and crystal aggregates.

Origin

Late 19th century. From the name of FairfieldCounty, Connecticut, where the mineral was first identified + -ite.

Pronunciation

fairfieldite

/ˈfɛːfiːldʌɪt/