NAICS 212319 Quarterly Industry Report
Other Crushed and Broken Stone Mining and Quarrying
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 212319Sector: Mining, Quarrying, and Oil and Gas Extraction (21)Updated: Q1 2026
About This Report
This industry profile for Other Crushed and Broken Stone Mining and Quarrying (NAICS 212319) draws on data from the U.S. Census Bureau[10], U.S. Geological Survey[6], Bureau of Labor Statistics[11], and SBA size standards database[7]. Published by Fair Market Value and updated quarterly, it provides valuation professionals, construction materials analysts, and aggregate industry investors with current market data. All quantitative claims are sourced to publicly verifiable databases.
Industry Snapshot
Key metrics for the other crushed and broken stone mining and quarrying industry.
NAICS Sector
21
Mining, Quarrying, and Oil and Gas Extraction
Industry Definition & Overview
Other Crushed and Broken Stone Mining and Quarrying (NAICS 212319) encompasses establishments primarily engaged in mining or quarrying crushed and broken stone types not classified under limestone or granite, including traprock, sandstone, quartzite, marble (crushed), slate, and other stone varieties per the U.S. Census Bureau[5]. Activities include basalt and diabase (traprock) crushing for road aggregate, sandstone quarrying for construction fill, quartzite processing for railroad ballast, and crushed marble production for landscaping and industrial use.
Traprock, sandstone, quartzite, and miscellaneous stone types together account for roughly 10% of total U.S. crushed stone output per USGS[6] mineral commodity data, with total national crushed stone production reaching 1.5 billion metric tons in 2023. Traprock (basalt and diabase) is prized for its hardness and skid resistance in asphalt pavement applications, commanding premium pricing in highway construction markets. Sandstone and quartzite aggregates serve regional construction markets where these stone types are geologically abundant. Quarries operate across all 50 states, with production concentrated near population centers due to the high cost of transporting bulk aggregate materials.
Per the SBA Table of Size Standards[7], the size standard is $30.5 million in average annual receipts. The Mine Safety and Health Administration[8] inspects surface quarries at least twice annually under the Federal Mine Safety and Health Act. EPA[9] regulates particulate matter emissions from crushing and screening operations, with state air quality permits required for dust-generating quarry activities.
What's Included in This Industry
- Traprock (basalt/diabase) crushing and screening for aggregate
- Sandstone quarrying and crushing operations
- Quartzite mining and processing for construction aggregate
- Crushed marble production for decorative and industrial uses
- Slate crushing for roofing granules and fill material
- Volcanic cinder and scoria mining for lightweight aggregate
- Railroad ballast production from hard stone varieties
- Riprap and armor stone production for erosion control
- Quarry site development and bench advancement
- Stone quarry reclamation and site restoration
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Sector | Mining, Quarrying, and Oil and Gas Extraction | 21 |
| Subsector | Mining (except Oil and Gas) | 212 |
| Industry Group | Nonmetallic Mineral Mining and Quarrying | 2123 |
| NAICS Industry | Stone Mining and Quarrying | 21231 |
| National Industry | Other Crushed and Broken Stone Mining and Quarrying | 212319 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 212312 | Crushed and Broken Limestone Mining and Quarrying | Crushed and Broken Limestone Mining and Quarrying produces the dominant aggregate type at 69% of national output, competing with traprock, sandstone, and other stone types for road construction and concrete production applications based on local geology and material specifications |
| 212313 | Crushed and Broken Granite Mining and Quarrying | Crushed and Broken Granite Mining and Quarrying produces granite aggregate representing 15% of national crushed stone output, with granite and traprock both serving as hard-stone alternatives to limestone in regions where softer carbonate rocks are geologically unavailable |
| 212321 | Construction Sand and Gravel Mining | Construction Sand and Gravel Mining produces natural sand and gravel aggregate that competes with crushed stone for many construction applications, with material selection between crushed stone and natural gravel depending on project specifications and local deposit availability |
| 327320 | Ready-Mix Concrete Manufacturing | Ready-Mix Concrete Manufacturing purchases crushed stone as coarse aggregate for concrete production, with traprock and quartzite aggregate preferred in high-strength and abrasion-resistant concrete mixes due to their superior hardness and durability properties |
| 237310 | Highway, Street, and Bridge Construction | Highway, Street, and Bridge Construction consumes crushed stone for road base, asphalt aggregate, and concrete structural applications, with traprock's skid resistance making it a preferred surface aggregate for high-traffic highway pavement on state DOT projects |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | Pennsylvania | 15.2% | 55 |
| 2 | Texas | 9.1% | 33 |
| 3 | Oregon | 9.1% | 33 |
| 4 | California | 8.8% | 32 |
| 5 | Washington | 5.8% | 21 |
| 6 | Massachusetts | 4.1% | 15 |
| 7 | New York | 3.9% | 14 |
| 8 | Arkansas | 3.9% | 14 |
| 9 | Connecticut | 3.3% | 12 |
| 10 | Vermont | 3.0% | 11 |
% Of Establishments
0%
15%
Source: County Business Patterns, U.S. Census Bureau[3]
SBA Lending Summary
8
Total SBA Loans
$5.2M
Total Loan Volume
$650K
Average Loan Size
10 yrs
Average Loan Term
10.50%
Average Interest Rate
80
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[4]
Key Insight: Per the SBA Table of Size Standards[7], Other Crushed and Broken Stone Mining and Quarrying (NAICS 212319) has a size standard of $30.5 million in average annual receipts for federal contracting purposes. SBA lending programs[12] support crushing equipment, quarry development, and working capital for qualifying stone quarrying operations. Eligible businesses can access SBA 7(a) loans[13] for working capital, equipment, and acquisition financing, while 504 loans[14] support major fixed-asset purchases including real estate and heavy machinery.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | Newtek Bank, National Association | 8 | $5.2M | $650K |
Frequently Asked Questions
Common questions about this industry.
What is NAICS 212319?
NAICS 212319 covers crushed and broken stone mining for stone types other than limestone and granite per the U.S. Census Bureau[5], including traprock, sandstone, quartzite, crushed marble, and slate.
What is traprock?
Traprock is a commercial term for dark-colored igneous rocks including basalt and diabase used as construction aggregate per USGS[6] mineral definitions. Traprock's hardness and skid resistance make it a preferred material for asphalt highway pavement surfaces.
What is the SBA size standard?
Per the SBA size standard[7], the threshold is $30.5 million in average annual receipts for federal small business contracting eligibility and SBA lending products for stone quarrying operations.
How much of U.S. crushed stone is from non-limestone/granite sources?
Traprock, sandstone, quartzite, and miscellaneous stone types together account for roughly 10% of total U.S. crushed stone output per USGS[6] data, with limestone at 69% and granite at 15% composing the bulk of production.
Why is traprock used in road construction?
Traprock provides superior skid resistance, hardness, and durability compared to softer stone types, making it a preferred aggregate for asphalt highway surfaces on high-traffic roads per state department of transportation material specifications and pavement design standards.
What safety regulations apply to stone quarries?
What is quartzite used for?
Quartzite aggregate serves as railroad ballast, road base, and concrete aggregate in regions where this metamorphic rock is geologically available. Quartzite's extreme hardness and resistance to weathering make it suitable for high-performance construction applications per industry material specifications.
How far can crushed stone be shipped economically?
Transportation costs for crushed stone frequently equal or exceed the plant sale price, limiting the economic delivery radius to 30-50 miles for most quarries. This cost structure makes quarry location relative to construction markets the primary competitive factor in the aggregate industry.
Sources & References
Government datasets and editorial sources used in this report.
- [1]U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages bls.gov
- [2]U.S. Census Bureau, Economic Census census.gov
- [3]U.S. Census Bureau, County Business Patterns census.gov
- [4]U.S. Small Business Administration, SBA 7(a) Loan Program Data data.sba.gov
- [5]U.S. Census Bureau census.gov
- [6]USGS usgs.gov
- [7]SBA Table of Size Standards sba.gov
- [8]Mine Safety and Health Administration msha.gov
- [9]EPA epa.gov
- [10]U.S. Census Bureau data.census.gov
- [11]Bureau of Labor Statistics bls.gov
- [12]SBA lending programs sba.gov
- [13]SBA 7(a) loans sba.gov
- [14]504 loans sba.gov
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