- Gemstone and industrial diamond mining (8)
- Diamond mining, industrial (5)
- Garnet mining (2)
- Gem stones (natural) mining, nec (5)
- Semiprecious stones mining, nec (1)
- Mineral abrasives mining (2)
- Pyrophyllite mining (1)
- Peat grinding (2)
- Asphalt mining and bituminous stone quarrying (2)
- Asphalt (native) mining (1)
- Gilsonite mining (1)
- Quartz crystal (pure) mining (1)
