Gilsonite
/ˈgɪlsənaɪt/noun
mass noun
- trademark a very pure, shiny black, brittle form of asphalt, used in making inks, paints, and varnishes〈商标〉硬沥青(用于制墨水、颜料和清漆)。
词源
late 19th cent.: named after Samuel H. Gilson, 19th-cent. American mineralogist, + -ITE1 .