mordeniteMin.|ˈmɔːdənaɪt| [Named by H. How, 1864, from Morden, Nova Scotia, its locality. See -ite.] A hydrous silicate of aluminium, calcium, and sodium, resembling heulandite. 1864How in Jrnl.Chem.Soc. XVII. 100 On Mordenite, a New Mineral from the Trap of Nova Scotia.