Dwarves' Earth Treasures Online Museum: Iron City Datolites
Iron City (Empire) Mine, Copper
Harbor, Keweenaw CO., Michigan
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I know very little about Iron City(Empire) Mine near Copper Harbor, MI
which are well known for its orangish datolites. The datolites from that
mine seemed to have came and gone very quickly as if that site was short-lived.
I was lucky to have two of them.
