Anhydrite dermatitis in coal mines

@article{Lachapelle1984AnhydriteDI,
  title={Anhydrite dermatitis in coal mines},
  author={J. M. Lachapelle and Gehan Adel Mahmoud and R Vanherle},
  journal={Contact Dermatitis},
  year={1984},
  volume={11}
}
In Belgian coal mines, some galleries are shored up by metallic beams. Gaps between the rock and the beams are filled in with anhydrite powder mixed with tap water. When the anhydrite "paste" has dried, it becomes very hard by crystallization (1). For many years, occasional complaints of skin irritation have been made by coal miners when anhydrite filling was carried out. The symptoms were itching or burning sensations on the face, neck, forearms, and thighs. No erythema or eczematous reactions… 

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