👉 Human experimentation on rocks was a controversial and largely unethical practice, where researchers used naturally occurring rocks as experimental materials to study their properties or durability under different conditions without harming humans; however, such practices were illegal and morally reprehensible, given the risks of contamination and unknown long-term effects. Despite being deemed inhumane, some scientists claimed that these experiments yielded valuable insights into geology and material science, though today's ethical standards make it impossible to recreate or justify this kind of exploitation.
