Crystals are well-known to have electrical properties. Your wrist watch is an example. So are LCD displays. The 'C' stands for crystal.
Sonar technology from waaaaaay back in the day used quartz crystal.
Your stove and grill contain crystals.
Solar panels contain crystals.
Water purification systems use crystals.
You should see my wi-fi router at home.
It is encircled in a ring of hematite, amethyst crystal and a chunk of a pyrite geode.
I am very sensitive to this stuff, so when I bought the new iPhone 16 last week, I made sure to limit it's deleterious effects by placing a piece of an amethyst geode on or near the phone. I sense an immediate effect when doing so.