(This is a concretion I found on the beach after a storm. It's a sort of sedimentary rock that solidifies around a piece of metal on the ocean floor; I mostly find them encasing old hardware, tin cans, fishing equipment, and other refuse.
But here the core is a 3 to 4 inch military cartridge, evidently surplused into the sea by the local US Navy base.
Concretions are fairly soft stones, easily broken by roasting in the woodstove or rapping with a hammer.
Which is why I left this one in place.)
But here the core is a 3 to 4 inch military cartridge, evidently surplused into the sea by the local US Navy base.
Concretions are fairly soft stones, easily broken by roasting in the woodstove or rapping with a hammer.
Which is why I left this one in place.)
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