.	Dwarves' Earth Treasures Online Museum: Drexel Datolites Drexel Mine, Delaware, Keweenaw CO., Michigan	.

    Drexel Mine is obviousily a failed attempt to locate the copper-rich lobes since the mine dump is very small and the datolites started showing up from that mine dump very recently. While most datolites are white to opaque, few datolites are very similar to those of Delaware (pink color) and it happens that Drexel Mine is just a mile (or two?) west of Delaware Mine and Connecticut Mine. Some datolites also include some copper inclusions. I managed to find few datolites at one spot at Drexel mine and there may be few more waiting to be found.
Small sizes but great variety of colors! All found by Jeffrey Anderson, August 2008

Orange double-chambered datolite August 2009	Few more small datolites that are not gray. August 2009
Typical white multi-chambered datolite, Found by Jeffrey Anderson, August 2008	Has anyone ever found a red & yellow datolite at Drexel?!?! Found by Jeffrey A., August 2008
Typical white datolite, found by JeffreyA., August 2007	Rare datolite wtih red dots.
Typical opaque datolites, found by JeffreyA., August 2007	Rare colored datolites some with copper inclusions.