zeophyllite

noun

ze·​oph·​yl·​lite

zēˈäfəˌlīt

plural -s

: a mineral Ca₄Si₃O₇(OH)₄F₂ consisting of a basic silicate and fluoride of calcium often containing iron

Word History

Etymology

German zeophyllit, from zeolit zeolite + phyll- + -it -ite; from its occurrence in small plates

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