Data / Mines / Crushed, broken quartzite
Crushed, broken quartzite mines in the US: 9 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 9 open crushed, broken quartzite mines in the US, run by 8 operators and employing 112 people. Since January 1, 2022 its inspectors issued 138 citations and orders there with $35,730 in proposed penalties, and operators reported 18 injury or illness cases, 1 of them fatal. The operators with the most open mines are Martin Marietta Materials, Inc.; Am Gravel LLC; Hardrock Aggregate. Data from MSHA, November 6, 2026.
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- Open mines
- 9
- Operators
- 8
- Employees
- 112
- Active
- 6
- Intermittent
- 3
- Mines run by individuals, counted and not listed
- 1
- Citations and orders since January 1, 2022
- 138
- Significant and substantial
- 25 (18.1%)
- Closure orders
- 3
- High negligence or reckless
- 15
- Proposed penalties
- $35,730
- Amount paid so far
- $35,730
- Inspections
- 110
- Inspector hours on site
- 882
- Citations per inspection
- 1.25 (all mines 2.30)
- Accident reports
- 18
- Injury and illness cases
- 18
- Fatalities
- 1
- Latest MSHA record
- October 30, 2026
Operators with the most open mines
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Martin Marietta Materials, Inc. | 2 | 28 | 18 | $3,067 | 4 |
| Am Gravel LLC | 1 | 3 | 34 | $14,384 | 0 |
| Hardrock Aggregate | 1 | 2 | 27 | $6,049 | 0 |
| C E D Enterprises Inc | 1 | 13 | 8 | $1,156 | 3 |
| Ruveon LLC | 1 | 10 | 3 | $409 | 2 |
| Tennessee Aggregates LLC | 1 | 1 | 2 | $294 | 0 |
| Vulcan Materials Asphalt and Construction, LLC | 1 | 8 | 0 | $0 | 0 |
Operators with the most citations
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Am Gravel LLC | 1 | 3 | 34 | $14,384 | 0 |
| Hardrock Aggregate | 1 | 2 | 27 | $6,049 | 0 |
| Martin Marietta Materials, Inc. | 2 | 28 | 18 | $3,067 | 4 |
| C E D Enterprises Inc | 1 | 13 | 8 | $1,156 | 3 |
| Ruveon LLC | 1 | 10 | 3 | $409 | 2 |
| Tennessee Aggregates LLC | 1 | 1 | 2 | $294 | 0 |
| Vulcan Materials Asphalt and Construction, LLC | 1 | 8 | 0 | $0 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Pakkebier Rock Quarry | Am Gravel LLC | Graham County, KS | Crushed, broken quartzite | 3 | 34 |
| Hoogland Quarry | Hardrock Aggregate | Rock County, MN | Crushed, broken quartzite | 2 | 27 |
| Morgan County Quarry | Martin Marietta Materials, Inc. | Morgan County, GA | Crushed, broken quartzite | 11 | 10 |
| New Ulm Quarry | Martin Marietta Materials, Inc. | Nicollet County, MN | Crushed, broken quartzite | 17 | 8 |
| C E D Enterprises Inc | C E D Enterprises Inc | Frederick County, VA | Crushed, broken quartzite | 13 | 8 |
| Bayer Quartzite Quarry | Ruveon LLC | Caribou County, ID | Crushed, broken quartzite | 10 | 3 |
| Middle Quarry | Tennessee Aggregates LLC | Johnson County, TN | Crushed, broken quartzite | 1 | 2 |
| Coldwater Quarry | Vulcan Materials Asphalt and Construction, LLC | Calhoun County, AL | Crushed, broken quartzite | 8 | 0 |
States
| State | Open mines | Share |
|---|---|---|
| Minnesota | 2 | 22.2% |
| Alabama | 1 | 11.1% |
| Georgia | 1 | 11.1% |
| Idaho | 1 | 11.1% |
| Kansas | 1 | 11.1% |
| South Dakota | 1 | 11.1% |
| Tennessee | 1 | 11.1% |
| Virginia | 1 | 11.1% |
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 25 | 2 | $4,153 | 3 |
| 2023 | 28 | 9 | $8,297 | 6 |
| 2024 | 44 | 9 | $17,433 | 3 |
| 2025 | 16 | 1 | $2,685 | 4 |
| 2026 | 25 | 4 | $3,162 | 2 |
Standards cited most at crushed, broken quartzite mines
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 6 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 6 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.5001 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 3 |
Injury and illness cases at crushed, broken quartzite mines
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| Days away from work or restricted activity | 8 |
| No lost time, or an occupational illness | 9 |
What the accident reports at crushed, broken quartzite mines describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handtools (nonpowered) | 5 |
| Slip or fall of person | 4 |
| Handling of materials | 3 |
| Machinery | 2 |
| Other | 1 |
| Powered haulage | 1 |
| Striking or bumping | 1 |
| Dust disease of lungs | 1 |
Equipment named in accident reports at crushed, broken quartzite mines
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 5 |
| Front-end loader | 2 |
| Hand tools (powered) | 2 |
| Conveyor | 1 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.