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Hazardous Minerals

Some minerals pose health risks that geologists must understand and mitigate. Asbestos Group Minerals Types - Chrysotile white asbestos - Amphibole asbestos blue, brown Occurrence - Ultramafic rocks - Serpentinites - Some metamorphic terranes Precautions - Do not break or grind samples - Wet sampling to suppress dust - Use P2/N95 respirator minimum - Bag samples immediately Radioactive Minerals Common Examples - Uraninite - Autunite - Carnotite - Thorite Precautions - Carry radiation detector - Limit handling time - Wash hands thoroughly - Separate from other samples

Verification resources

Cross-check terminology, classification, methods, and safety with these authoritative external resources.

  • Underground hard-rock mining — Canadian Centre for Occupational Health and Safety. Canadian occupational-health guidance about common hard-rock mining hazards and controls.
  • Silica, quartz — Canadian Centre for Occupational Health and Safety. Canadian occupational-health guidance for crystalline-silica hazards and dust controls.
  • Asbestos control strategies — Canadian Centre for Occupational Health and Safety. Canadian workplace guidance emphasizing qualified assessment, regulated procedures, exposure control, HEPA cleanup, waste handling, and jurisdiction-specific requirements.
  • Respirator selection — Canadian Centre for Occupational Health and Safety. Current guidance explaining why respiratory protection requires a written program, hazard assessment, selection, medical clearance, training, fit testing, and seal checks.

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