Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape.... Other monumental or building stone....
Pebbles, gravel, broken or crushed stone, of a kind commonly
used for concrete aggregates, for road metalling, or for
railway or other ballast; shingle and flint, whether or not
heat-treated; macadam of slag, dross, or similar industrial
waste, whether or not incorporating the materials cited in the
first part of the heading; tarred macadam; granules, chippings
and powder, of stones of heading 2515 or 2516, whether or not
heat-treated:
Pebbles, gravel, broken or crushed stone, of a kind
commonly used for concrete aggregates, for road
metalling, or for railway or other ballast, shingle and
flint, whether or not heat-treated......