Dwarves' Earth Treasures: Drexel (Drexal Drexil) datolites

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

Field-collecting Status: OK to collect at own's own risk.

Drexel (Drexal/Drexil?) Mine is obviously 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 recently. While most datolites are white to opaque gray, few datolites are similar to those of Delaware (pink color) found there 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 a few datolites at one spot at Drexel mine and there may be few more waiting to be found. As of August 2010, few people appeared to have hit on a big nest of larger datolites at further end of the piles but most seem to have come up white to gray with some greenish coloring while I'm still finding small but colorful datolites at one different spot. There are some faint yellow datolites from one side so it's obvious that the copper miners dug out at least three seams of datolites during their mining expeditions. As of August 2021, I still haven't found any new datolites since August 2018 even few people still find datolites there from time to time. I bought a pair of yellow datolites that was found there in 2020.

You can click on the pictures to see larger pictures.

Drexal Mine

Datolite Found!

A Special Find at Drexal Mine, Reddish-orangish datolites with bit of yellow background
found in a "mudrock" rock by jeffrey Anderson, August 2012


Datolites in-situ the rock	Close-up view of datolites

Other datolites found by Jeffrey Anderson at Drexel Mine

Small Colorful Datolites Found by Jeffrey A.
August 2008-2012


Orange double-chambered datolite found by JA, August 2009	Deep red datolite! found by JA, August 2011	Yay, red datolite! Found by JA, August 2015 (last colored datolite I've found)

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	Mustard Yellow (bought from a dealer who found this pair)

Rare datolite with red dots. (I bought that one)	Large(finally!) datolite with greenish hue, found by JeffreyA., August 2010	Copper inclusions found by JA, August 2010

Looks like Delaware datolite found by JeffreyA., August 2007	Copper inclusions found by JA, August 2010	Rotten green datolite found by JA, August 2010

Typically gray datolites found by JA, August 2010	That is where deep red datolite came from. found by JA, August 2011

found by JA, August 2013	"Smoke Ring" found by JA, August 2013	Datolite completely replaced by copper Found by JA, August 2013

Pink-dotted datolites in matrix August 2010	Bought from a dealer, rare light yellow color with copper freckles.	Found by Jeffrey A. August 2015

August 2018	Orange to gray with dots found by JA, August 2010	Found by Jeffrey A. August 2022