HTS 2515: Marble, travertine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and alabaster, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape

4 codes. Pick one to see its duty from every country of origin. From the USITC schedule, Revision 20 (2026).