This U.S. industry comprises establishments primarily engaged in cutting, shaping, and finishing granite, marble, limestone, slate, and other stone for building and miscellaneous uses. Stone product manufacturing establishments may mine, quarry, or purchase stone. Cross-References. Establishments primarily engaged in-- ? Mining or quarrying stone--are classified in Industry Group 2123, Nonmetallic Mineral Mining and Quarrying; and ? Buying and selling semifinished monuments and tombstones with no work other than polishing, lettering, or shaping to custom order--are classified in Sector 42, Wholesale Trade or Sector 44-45, Retail Trade.