Answer: kishes

AnswerCrossword Clue
kishesKISH, solid graphite which separates from hot cast-iron
kishesmixture of graphite and slag separated from and floating on the surface of molten pig iron or cast iron as it cools
kishesdross on the surface of molten lead
kishesancient Sumerian and Akkadian city: its site is 8 mi. (13 km) east of the site of Babylon in S Iraq