Dwarves' Earth Treasures Online Museum:
Datolites of Lake Mine
Lake & South Lake Mines, Mass
City, Ontonagon Co. Michigan
Field-collecting Status: Private Property, No trespassing!
The Lake Mine is one of several mines owned by Red Metal Retreat Company
to the north of Mass City.
The datolites from that mine appear to be white
to gray sometimes with pink hue and black rims.
You can click on the pictures to see larger pictures.