guayaquilliteMin.|gwaɪəˈkɪlaɪt| Also guya-. [Named by Johnston, 1838, from Guayaquil in S. America, its locality.] A fossil resin of pale yellow colour. 1838Phil.Mag.Ser. iii. XIII. 329 Guyaquillite.1868Dana Min. (ed. 5) 745 Guyaquillite..Yields easily to the knife, and may be rubbed to powder.