Calcareous Monumental or Building Stone (excl. Marble & Travertine); Alabaster

Limestone, shell stone, and other calcareous building and monumental stones — excluding marble and travertine — along with alabaster, fall under a single 10-digit line (2515200000). These materials serve the construction, masonry, and decorative arts sectors, where their workability and regional availability drive sourcing decisions. Canada is the leading US supplier, with India and the Dominican Republic also among the top sources, reflecting both proximity and the presence of notable limestone and alabaster deposits in those countries.