Basic Knowledge of Soil and Ground × Classification Details: Mining and Quarrying Occupations
2 jobs found.
Diatomaceous Earth Extractor
Worker who excavates and extracts raw diatomaceous earth, a natural material, and supplies raw materials for building materials and soil conditioners through drying, crushing, and quality control.
Placer Mining Operator
Placer mining operators extract, transport, and sort sand and gravel resources to supply them as construction materials.