.
Datolites from Delaware mine are most encountered of any datolites from
Michigan mainly due to the fact that the mine dumps are easily accessible
by anyone wanting to try their luck finding some datolites and their highly
desired pink to red colors. The Delaware Mine seemed to be quite rich in
datolite seams as evident as finding different types of datolites from
various locations over the mine dumps. One area produced the small white
datolite "marbles", one area produced pink to reddish datolites and yellow
datolites came from somewhere in the mine dump. It is my opinion
that the Delaware mine dumps had been excessively bulldozed in a way that
they may be not much datolites left for later generations (it's very easy
to discourage novice collectors).