NAICS 21231

Stone Mining and Quarrying

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,… It has no schema of its own: companies here are mapped on the Universal schema, and what it does not cover is recorded as gaps.

Baseline: Universal v1
Inherited from: Universal
Companies mapped: 0 of 0
Primitives: 47 in 8 parts
Last updated: Nov 2, 2026

Below itDimension Stone Mining and Quarrying Crushed and Broken Limestone Mining and Quarrying Crushed and Broken Granite Mining and Quarrying Other Crushed and Broken Stone Mining and Quarrying

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0 gaps

No open gap on Stone Mining and Quarrying: research has found nothing the Universal baseline does not cover.

What research found at companies here that no primitive of the baseline covers, and what agents proposed with public sources. Seen at 3 or more companies, a gap is ready to promote into the schema.