heulandite

US:USA pronunciation: respellingUSA pronunciation: respelling(hyo̅o̅lən dīt′)


WordReference Random House Unabridged Dictionary of American English © 2025
heu•land•ite  (hyo̅o̅lən dīt′),USA pronunciation n. 
  1. Mineralogya white or transparent, colorless mineral of the zeolite family, hydrous calcium aluminum silicate, CaAl2Si7O18·6H2O, occurring in basic volcanic rocks in the form of crystals with a pearly luster.
  • 1815–25; named after Henry Heuland, 19th-century English mineral collector; see -ite1


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