Dwarves' Earth Treasures Online
Isle Royale Datolites
From the old mines and
offshore areas of Isle Royale, Michigan
Field-collecting Status: National
Park, No Collecting!
Isle Royale datolites can be obtained only from old
appears that few people visited Isle Royale island in the past and
collected some datolites from the mine pits before the federal
government placed a ban on any rock collecting on the island. The
old collection of datolites from the pits of Isle Royale recently
showed up and I was able to obtain few datolites from it. Most
datolites seem to be white with pink centers and few coming with
orange, salmon and yellow colors.
Also, some people collected a bunch of
datolites while scuba-diving before the ban was in full effect and
many colorless to light green datolites with prehnite inclusions
were collected while few bright-colored datolites were found.
You can click on
the pictures to see larger pictures.