ˈfa(a)ərˌfēlˌdīt, ˈferˌ- noun
( -s )
Etymology: Fairfield co., Conn. + English -ite
: a mineral Ca 2 Mn(PO 4 ) 2 .2H 2 O consisting of a white or pale yellow hydrous calcium manganese phosphate and usually occurring foliated or fibrous (sp. gr. 3.07-3.15)