Named for type locality Morden, Nova Scotia (Canada) +‎ -ite.

mordenite (countable and uncountable, plural mordenites)

1. (mineralogy) An orthorhombic-pyramidal mineral containing aluminum, calcium, hydrogen, oxygen, potassium, silicon, and sodium.

• ptilolite

• David Barthelmy (1997–2026), “Mordenite”, in Webmineral Mineralogy Database.
• “mordenite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.

• interdome, intermode