flint
flint \'flint\ \-.li-k\ n [ME, fr. OE; akin to OHG flins pebble, hard stone] often attrib 1: a massive hard quartz that strikes fire with steel 2: something used for striking firs; specif : an iron and cerium al loy used in cigarette lighters 3: something resembling flint in hardness - flint vt