Dwarves' Earth Treasures Online
Datolites of Laurium &
Laurium & LaSalle Mines,
Houghton Co., Michigan
Status: Private Property(Moyle
Construction), Collect at one's own risk.
Mine is one of very few mine dumps which I know exactly where to
find datolites. I have a short story to tell about those unusual
datolites I found at Laurium Mine. On August 2004, I was just
the bulldozed mine dump of Laurium Mine (behind a church) with my
on the ground as always, and I happened to spot a datolite in
view (how can anyone have missed that one?!), but I was running
time to search for more.
Next year, I came
to the exact spot where I found the first datolite, and just 40
later (according to someone else who was with me), I already
three more datolites (not counting a clip). Again, I found
two more datolites
in August 2006 and another one (possibly last) in August 2007. It
that the miners hit on a single datolite seam and dumped the
on one spot. As of August 2008, the datolite spot is buried by
and until that spot has been exposed once again, I don't think
be able to find more. The unusual thing about the Laurium
is that they contain "mossy" flicks of copper (think of moss
make those datolites look brownish-red, and one black datolite had
been found too.
The LaSalle Mine is
southern "next door" to the Laurium Mine appeared to have produced
very few datolites and I got a couple from an old collector.
Click on for larger picture.
You can click on the pictures to
see larger pictures.
Datolites from Laurium Mine
|First datolite I found at Laurium Mine
and it was in plain view!
|Check out the mossy details
of copper in this specimen!
|The ghostly white areas are actually
fractures just beneath the surface.
Rare black datolite and very reddish datolite,
||With copper inclusions as usual
|This one was found in the bulldozer's
tracks, hence it was very fractured.
Datolites from LaSalle
south of Laurium Mine)