Definition of mordenite in English:

mordenite

Pronunciation /ˈmɔːdənʌɪt/

noun

Mineralogy
  • An orthorhombic hydrated silicate of aluminium, calcium, sodium, and potassium, which belongs to the zeolite group and usually occurs as white glassy needles, especially in igneous rocks.

Origin

Mid 19th century. From the name of Morden, a community in Kings County, Nova Scotia, where the silicate was discovered + -ite; coined by H. How.