gismondite

noun

gis·​mon·​dite

jizˈmänˌdīt,

ˈjizmən-

variants or gismondine

-ˌdēn

plural -s

: a mineral CaAl₂Si₂O₈.4H₂O consisting of a light-colored hydrous calcium aluminum silicate occurring in pyramidal crystals

Word History

Etymology

gismondite from gismondine + -ite; gismondine from German gismondin, from C. G. Gismondi †1824 Italian mineralogist + German -in -ine

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