NAICS 212319 - Other Crushed and Broken Stone Mining and Quarrying
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What is NAICS 212319
NAICS code 212319 covers establishments engaged in the mining and quarrying of crushed and broken stone other than limestone and granite. This includes businesses that develop mine sites, extract bituminous limestone, bituminous sandstone, marble, sandstone, and other similar stone materials. Additionally, the code includes preparation plants that beneficiate stone through processes like grinding and pulverizing. Companies operating in this sector provide essential raw materials used in construction, road building, and other infrastructure projects, making them critical suppliers for public works and government construction initiatives. Government agencies contract these services to ensure a reliable supply of quality crushed stone materials necessary for maintaining and building public infrastructure, such as highways, bridges, and government facilities. The sector supports large-scale projects by providing specialized stone materials that are not covered under other NAICS codes like limestone or granite mining.
Industry Classification for NAICS 212319
This U.S. industry comprises: (1) establishments primarily engaged in developing the mine site and/or mining or quarrying crushed and broken stone (except limestone and granite); (2) preparation plants primarily engaged in beneficiating (e.g., grinding and pulverizing) stone (except limestone and granite); and (3) establishments primarily engaged in mining or quarrying bituminous limestone and bituminous sandstone.
Illustrative Examples:
- Bituminous limestone mining and/or beneficiating
- Marble crushed and broken stone mining and/or beneficiating
- Bituminous sandstone mining and/or beneficiating
- Sandstone crushed and broken stone mining and/or beneficiating
Breakdown for NAICS 212319
- Includes mining and quarrying of crushed and broken stone except limestone and granite.
- Covers beneficiation processes such as grinding and pulverizing stone materials.
- Encompasses mining of bituminous limestone and bituminous sandstone.
- Relevant to businesses supplying raw materials for construction and infrastructure.
- Subject to size standards based on employee count or revenue thresholds.
- Supports government infrastructure projects requiring specialized stone materials.
Included Activities for NAICS 212319
- Developing and preparing mine sites for stone extraction.
- Mining crushed and broken stone including marble and sandstone varieties.
- Beneficiating stone through grinding, pulverizing, and processing.
- Extracting bituminous limestone and bituminous sandstone materials.
- Supplying raw stone materials for government construction projects.
- Ensuring environmental compliance during mining operations.
- Transporting mined stone to preparation plants or project sites.
- Maintaining equipment and infrastructure at quarry and mining locations.
Business Types for NAICS 212319
- Quarry operators specializing in crushed stone other than limestone and granite.
- Stone beneficiation and processing plants.
- Mining contractors focused on bituminous limestone and sandstone extraction.
- Construction materials suppliers for public infrastructure projects.
- Environmental compliance consultants for mining operations.
- Equipment rental and maintenance firms serving the stone mining industry.
Subcategories for NAICS 212319
- Basalt crushed and broken stone mining and/or beneficiating
- Bituminous limestone mining and/or beneficiating
- Bituminous sandstone mining and/or beneficiating
- Boulder crushed and broken mining and/or beneficiating
- Diabase crushed and broken stone mining and/or beneficiating
- Dolomitic marble crushed and broken stone mining and/or beneficiating
- Gabbro crushed and broken stone mining and/or beneficiating
- Ganister crushed and broken stone mining and/or beneficiating
- Granules, slate, mining and/or beneficiating
- Grits crushed and broken stone mining and/or beneficiating
- Limestone, bituminous, mining and/or beneficiating
- Marble crushed and broken stone mining and/or beneficiating
- Mica schist crushed and broken stone mining and/or beneficiating
- Onyx marble crushed and broken stone mining and/or beneficiating
- Quartzite crushed and broken stone mining and/or beneficiating
- Riprap (except granite, limestone) preparation plants
- Riprap (except limestone and granite) mining or quarrying
- Sandstone crushed and broken stone mining
- Schist, mica, crushed and broken stone, mining and/or beneficiating
- Serpentine crushed and broken stone mining and/or beneficiating
- Slate crushed and broken stone mining and/or beneficiating
- Stone (except limestone and granite) beneficiating plants (e.g., grinding)
- Stone, crushed and broken (except granite or limestone), mining and/or beneficiating
- Trap rock crushed and broken stone mining and/or beneficiating
- Verde' antique crushed and broken stone mining and/or beneficiating
- Volcanic rock crushed and broken stone mining and/or beneficiating
Government Buyers for NAICS 212319
Federal, state, and local government agencies are the primary buyers of services under NAICS 212319. The Department of Transportation (DOT) often contracts with these businesses for road and highway construction and maintenance projects, requiring specific types of crushed stone for paving and structural support. The U.S. Army Corps of Engineers procures these materials for military base infrastructure and civil works projects. Additionally, public works departments and municipal governments require these stone products for building and maintaining public buildings, drainage systems, and other civil infrastructure. Government buyers prioritize quality, availability, and environmental compliance when contracting with crushed stone mining and beneficiation businesses to meet stringent project specifications and timelines.
Contract Types & Procurement for NAICS 212319
Contracts in this NAICS category typically include firm-fixed-price and indefinite-delivery/indefinite-quantity (IDIQ) contracts for materials supply. Procurement methods often involve competitive bidding through Requests for Proposals (RFPs) or Invitations for Bid (IFBs), especially for large infrastructure projects. Contract values vary widely depending on project scope, ranging from small local government purchases under $100,000 to multi-million-dollar state or federal highway construction contracts. Long-term supply agreements are common due to the ongoing demand for crushed stone materials. Additionally, government contracts may include requirements for environmental compliance, quality control certifications, and timely delivery schedules to align with construction project timelines.
Details for NAICS 212319
Explore the hierarchy and related codes for this industry
| NAICS Code | Industry Title |
|---|---|
| 21231 | Stone Mining and Quarrying |
| 2123 | Nonmetallic Mineral Mining and Quarrying |
| 212 | Mining (except Oil and Gas) |
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