beringite
noun
ber·ing·ite
ˈber-iŋ-ˌīt,
ˈbir-
plural -s
: a melanocratic alkali-trachyte rock composed of barkevikite, albite, and orthoclase
Word History
Etymology
German beringit, from Bering island, Kamchatka, U.S.S.R. + German -it -ite