NAICS 5 Digit Industry 21231

Industry 21231

NAICS 5  Digit Industry 21231 – Stone Mining and Quarrying

Definition of NAICS 5 Digit Industry 21231: This industry comprises of the following:

  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 for Industry 21231

What codes are similar to this industry that might be more applicable? The cross-reference guide below displays the codes that are similar to industry 21231. Please review to find the most applicable classification.

  • Producing lime–are classified in Industry 32741, Lime Manufacturing; and
  • Quarrying and dressing dimension stone–are classified in Industry 32799, All Other Nonmetallic Mineral Product Manufacturing.

Other Index Entries for NAICS 5-Digit Industry 21231

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with industry 21231. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

  • Agricultural limestone mining and/or beneficiating
  • Argillite mining or quarrying
  • Basalt crushed and broken stone mining and/or beneficiating
  • Basalt mining or quarrying
  • Bituminous limestone mining and/or beneficiating
  • Bituminous sandstone mining and/or beneficiating
  • Bluestone mining or quarrying
  • Boulder crushed and broken mining and/or beneficiating
  • Calcareous tufa crushed and broken stone mining and/or beneficiating
  • Calcareous tufa mining or quarrying
  • Cement rock crushed and broken stone mining and/or beneficiating
  • Chalk crushed and broken stone mining and/or beneficiating
  • Chalk, ground or otherwise treated, mining and/or beneficiating
  • Diabase crushed and broken stone mining and/or beneficiating
  • Diabase mining or quarrying
  • Dimension stone mining or quarrying
  • Diorite crushed and broken stone mining and/or beneficiating
  • Diorite mining or quarrying
  • Dolomite crushed and broken stone mining and/or beneficiating
  • Dolomite mining or quarrying
  • Dolomitic marble crushed and broken stone mining and/or beneficiating
  • Dolomitic marble mining or quarrying
  • Flagstone mining or quarrying
  • Gabbro crushed and broken stone mining and/or beneficiating
  • Gabbro mining or quarrying
  • Ganister crushed and broken stone mining and/or beneficiating
  • Gneiss crushed and broken stone mining and/or beneficiating
  • Gneiss mining or quarrying
  • Granite beneficiating plants (e.g., grinding or pulverizing)
  • Granite crushed and broken stone mining and/or beneficiating
  • Granite mining or quarrying
  • Granules, slate, mining and/or beneficiating
  • Greenstone mining or quarrying
  • Grits crushed and broken stone mining and/or beneficiating
  • Lime rock, ground, mining and/or beneficiating
  • Limestone (except bituminous) crushed and broken stone mining and/or beneficiating
  • Limestone beneficiating plants (e.g., grinding or pulverizing)
  • Limestone mining or quarrying
  • Limestone, bituminous, mining and/or beneficiating
  • Marble crushed and broken stone mining and/or beneficiating
  • Marble mining or quarrying
  • Marl crushed and broken stone mining and/or beneficiating
  • Mica schist crushed and broken stone mining and/or beneficiating
  • Mica schist mining or quarrying
  • Onyx marble crushed and broken stone mining and/or beneficiating
  • Onyx marble mining or quarrying
  • Quartzite crushed and broken stone mining and/or beneficiating
  • Quartzite dimension stone mining or quarrying
  • Riprap (except granite, limestone) preparation plants
  • Riprap (except limestone and granite) mining or quarrying
  • Riprap, granite, mining or quarrying
  • Riprap, granite, preparation plants
  • Riprap, limestone, mining or quarrying
  • Riprap, limestone, preparation plants
  • Sandstone crushed and broken stone mining
  • Sandstone mining or quarrying
  • Schist, mica, crushed and broken stone, mining and/or beneficiating
  • Schist, mica, mining or quarrying
  • Serpentine crushed and broken stone mining and/or beneficiating
  • Serpentine mining or quarrying
  • Slate crushed and broken stone mining and/or beneficiating
  • Slate mining or quarrying
  • Stone (except limestone and granite) beneficiating plants (e.g., grinding)
  • Stone, crushed and broken (except granite or limestone), mining and/or beneficiating
  • Stone, dimension, mining or quarrying
  • Syenite (except nepheline) crushed and broken stone mining and/or beneficiating
  • Syenite (except nepheline) mining or quarrying
  • Trap rock crushed and broken stone mining and/or beneficiating
  • Trap rock mining or quarrying
  • Travertine crushed and broken stone mining and/or beneficiating
  • Travertine mining or quarrying
  • Tufa, calcareous, crushed and broken stone, mining and/or beneficiating
  • Tufa, calcareous, mining or quarrying
  • Verde’ antique crushed and broken stone mining and/or beneficiating
  • Verde’ antique mining or quarrying
  • Volcanic rock crushed and broken stone mining and/or beneficiating
  • Volcanic rock, mining or quarrying
  • Whiting crushed and broken stone, mining and/or beneficiating

Industry Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry (Where you are now), and the most specific is the 6 digit NAICS code. If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 21: Mining, Quarrying, and Oil and Gas Extraction
    • Subsector 212: Mining (except Oil and Gas)
      • Industry Group 2123: Nonmetallic Mineral Mining and Quarrying
        • Industry 21231: Stone Mining and Quarrying
          • 6 Digit Code(s) NAICS 212311: Dimension Stone Mining and Quarrying
            • 6 Digit Code(s) NAICS 212312: Crushed and Broken Limestone Mining and Quarrying
            • 6 Digit Code(s) NAICS 212313: Crushed and Broken Granite Mining and Quarrying
            • 6 Digit Code(s) NAICS 212319: Other Crushed and Broken Stone Mining and Quarrying

Other helpful NAICS Downloads

View the download page for the material below.

NAICS 5 Digit Industry 21231 | Class Codes