I’m pagan but I have issues with most modern use of crystals in spiritualism. Not on religious grounds (except the geotheistic ones), but because they’re almost never harvested ethically or in a way that isn’t extremely bad for the environment.
If you find some nice crystals in a walk through the forest or if you inherit some use them by all means, but more people need to consider the consequences of the materials they use in their spiritual practice.
sgtgary