… Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape. …
Explanatory notes
… 25.18 ‑ Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing … ° C when it becomes a refractory material. The heading also includes dolomite which has been roughly trimmed or merely … However, the heading does not cover crushed dolomite for concrete aggregates, road metalling or railway ballast ( …