leucophanite

noun

leu·​coph·​a·​nite

lüˈkäfəˌnīt

variants or less commonly leucophane

ˈlükəˌfān

plural -s

: a mineral (Na, Ca)₂BeSi₂(O, F, OH)₇ consisting of a beryllium sodium calcium silicate with fluorine occurring in glassy greenish tabular crystals

Word History

Etymology

leucophanite from leucophane (from Swedish leukophan, from leuk- leuc- + -phan -phane) + -ite

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