NAICS Code 21231 Stone Mining and Quarrying


Mining, Quarrying, and Oil and Gas Extraction


This industry comprises (1) establishments primarily engaged in developing the mine site, mining or quarrying dimension stone (i.e., rough blocks and/or slabs of stone), or mining and quarrying crushed and broken stone and/or (2) preparation plants primarily engaged in beneficiating stone (e.g., crushing, grinding, washing, screening, pulverizing, and sizing).

Cross References

Establishments primarily engaged in
  • Producing lime: classified in Industry 32741, Lime Manufacturing
  • Quarrying and dressing dimension stone: classified in Industry 32799, All Other Nonmetallic Mineral Product Manufacturing.

Industry Leaders