.
Iroquois Mine was one of few very recent mines to be opened (1949) for
exploration purposes, and they had hit on a large seam of datolites. They
just dumped them on the piles. most of the datolites found there are white,
and some came with gray, and orange to pink dots. The mine dump had been
bulldozed only few times I advise against bringing any metal detectors
to the mine dumps for the dumps are very rich in the prehnite rocks with
bits of copper. The mine is now club owned and there was a red gate placed
on the road. It happens that some people frustrated with running out of
places to enjoy rockhounding removed the gate (vandalized). I know that
it's getting harder to find places to rockhound, but let's not become being
so extreme.
