pachnolite

noun

pach·​no·​lite

ˈpaknəˌlīt

plural -s

: a mineral NaCaAlF₆.H₂O consisting of a hydrous fluoride of sodium, calcium, and aluminum occurring in colorless to white monoclinic crystals (hardness 3, specific gravity 3)

Word History

Etymology

German pachnolit, from Greek pachnē hoarfrost + German -lit -lite; akin to Greek pēgnynai to fasten together

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