This U.S. industry comprises (1) establishments primarily engaged in developing the mine site, mining or quarrying crushed and broken limestone (including related rocks, such as dolomite, cement rock, marl, travertine, and calcareous tufa); and (2) preparation plants primarily engaged in beneficiating limestone (e.g., grinding or pulverizing).

• Agricultural limestone mining and/or beneficiating
• Calcareous tufa crushed and broken stone mining and/or beneficiating
• Cement rock crushed and broken stone mining and/or beneficiating
• Chalk crushed and broken stone mining and/or beneficiating
• Chalk, ground or otherwise treated, mining and/or beneficiating
• Dolomite crushed and broken stone mining and/or beneficiating
• Lime rock, ground, mining and/or beneficiating
• Limestone (except bituminous) crushed and broken stone mining and/or beneficiating
• Limestone beneficiating plants (e.g., grinding or pulverizing)
• Marl crushed and broken stone mining and/or beneficiating
• Riprap, limestone, mining or quarrying
• Riprap, limestone, preparation plants
• Travertine crushed and broken stone mining and/or beneficiating
• Tufa, calcareous, crushed and broken stone, mining and/or beneficiating
• Whiting crushed and broken stone, mining and/or beneficiating