> I wouldn't want to breathe the stuff in powdered form.
This makes me think of wood dust being dangerous to inhale [1], despite wood being a perfectly safe material for furniture at home.
[1]: https://en.wikipedia.org/wiki/Health_impacts_of_sawdust
This makes me think of wood dust being dangerous to inhale [1], despite wood being a perfectly safe material for furniture at home.
[1]: https://en.wikipedia.org/wiki/Health_impacts_of_sawdust
Particularly, wood is fairly recognizable, and almost certainly not liable to spontaneously implode into a cloud of dust. Plus, I'm fairly confident it is biodegradable (even in dust form).
Not sure the same can be said for most other materials, such as cadmium, or the parent mentioned naturally occuring compound.
Lunar regolith or Arean regoliths are quite different. You were presumably talking about lunar regolith.