were you metal detecting and found a rock that beeps as metal and are unsure of what ya found? poss meteorite?
“Hot rocks”. I run into it in the foothills and anywhere with non local “float” rock. They’re more beepy the further up the metamorphic/igneous grade you get from my experience. I posit it’s because they differ measurably from the soil you’ve (or the machine) ground balanced to. They can suck...