Lac La Croix Granite

Pink biotite granite that is variably magnetic and locally pegmatitic (~2,665 to 2,667 Ma).
State Minnesota
Name Lac La Croix Granite
Geologic age Neoarchean
Lithologic constituents
Igneous > Plutonic > Granitic > GranitePink biotite granite, locally pegmatitic
Comments Foliated to gneissic intrusive complexes and components of batholiths. Part of the metamorphic and intrusive rocks of the Quetico subprovince.

Jirsa, Mark A., Boerboom, Terrence J., Chandler, Val W., Mossler, John H., Runkel, Anthony C., and Setterholm, Dale R., 2011, S-21 Geologic Map of Minnesota-Bedrock Geology; Minnesota Geological Survey, State Map Series S-21. Scale 1:500,000.

NGMDB product
Counties Koochiching - Saint Louis