The Collaborative International Dictionary
Edingtonite
Edingtonite \Ed"ing*ton*ite\, n. (Min.) A grayish white zeolitic mineral, in tetragonal crystals. It is a hydrous silicate of alumina and baryta.
Wiktionary
edingtonite
n. A particular zeolite mineral.
Wikipedia
Edingtonite
Edingtonite is a white, gray, brown, colorless, pink or yellow zeolite mineral. Its chemical formula is Ba Al Si O·4 HO. It has varieties with tetragonal, orthorhombic or triclinic crystals.
Whilst some claim it was named after Scottish mineral collector James Edington (1787–1844), most sources (including the knowledgable mineralogist Haidinger) credit Thomas Edington FRSE (1814-1859), a Scottish geologist and mineralogist of greater fame.