amˈbligəˌnīt noun
( -s )
Etymology: German amblygonit, from Greek amblygōnios obtuse-angled (from ambly- + -gōnios, from gōnia angle) + German -it -ite
: a mineral (Li,Na)AlPO 4 (F,OH) consisting of basic lithium aluminum phosphate commonly containing sodium and fluorine and occurring in white cleavable masses