Not a dumb question at all. This last good extended blow we had pushed a lot of reds & greenies onto the beach, they're flat, lite, and they present a fair amount of surface area to push against, so in the same way the sea moves shells it also moves coins, rather easily accomplished. This same thing takes place from the upper beach as that sand gets stripped down onto the beach, thus these flat/lite coins follow. In the end you wind up with a lot of coins scattered about the beach. Lead fishing weights, though heavy/dense, are fairly easy to roll so it's also common to find these scattered about all these coins. We see this all the time after a good northeaster has lashed the beaches for a while, but as you've pointed out, where's the precious metals?
The question becomes this; did the northeaster just move the layers of soft sand around, or did it actually get into the hard-pack and firmer layers of beach? It isn't like summer now, most of what is out there has had the opportunity to sink for a while now, coins and even fishing weights have a fair amount of surface area so they're going to settle sooner when compared to a heavy ring that is very dense and has no surface area, so it is going to settle a bit deeper and it's going to be harder to move because there is almost no surface area to push against.
Remember that "dump" area I was telling you about - coins from this area are commonly washed up onto the beach because they are easily pushed, but any rings, crosses, etc., that may have been dumped are likely to still be fairly close to where they were dumped because they sink quicker and they are much harder to move about. Coins and even fishing weights will roll and get tossed about by the forces of the sea, rings on the other hand have a tendency to dig in because they are basically all edge with no surface area. And the larger and more dense the ring the harder it becomes to push it about without it digging into the sand. So, in essence, did the last blow actually get into the firmer layers of beach, or did it just push all those softer layers of summer sand around?
I've not been to the beach in about a week, going today to see if I can find some of those firmer layers of beach.
