Non-metallic mineral mining and quarrying

This industry comprises establishments primarily engaged in mining or quarrying dimension stone, rough blocks or slabs of stone, and crushed and broken stone.

This industry comprises establishments primarily engaged in operating sand and gravel pits, including dredging for sand and gravel; mining or quarrying shale; and mining, beneficiating or otherwise preparing kaolin or ball clay, including china clay, paper and slip clays, and other clays and refractory minerals.

This industry comprises establishments, not classified to any other industry, primarily engaged in mining, beneficiating or otherwise preparing non-metallic minerals, such as asbestos, gypsum and potash, and extracting peat.