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

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!