>>20654228Thanks again for the detailed explanation, you'd know best whether or not the dime dump is worth doing at least a prospect screening at but a spot where there were already 2 dimes and a rare token found sounds worthwhile to me.
>My method is incredibly productive, I find easily 20 times more tokens than they do in the same amount of time.Hell yeah, I'd be doing the exact same thing, whenever you stumble upon a rich spot ya gotta systematically mine it out. Besides the loot it also puts to rest any niggling anxiety about what might have been left behind. I've dug through several rotten copper/brass window or door screens in dumps before, probably all 120+ years old. I keep my eyes open but haven't found any good ones yet.
Anyway here's what I've been working on, I've used up almost 2 gallons of HCl prepping crates of petrified wood. Got lots of killer 50 million year old "Blue Forest" material that was covered with caliche and had ugly orange calcite filling crevices lined with lovely botryoidal blue chalcedony. I've sharpened some small stone chisels to carefully remove crud that the acid can't tackle and will need another jug of HCl but I'm very happy with the progress. Some of these pieces looked like garbage before but are turning out to be beautiful specimens. Got some good value in this pile of rocks.