Any of three granites quarried in Redwood County, Minnesota.
1. medium-grain grayish-green biotite granite
2. medium-grain pale pink quartz diorite with gray and pink feldspar
3. banded granite gneiss with black biotite.
These granites have been used for monuments and buildings.
Sources Checked for Data in Record
- Frank A. Lent, Trade names and Descriptions of Marbles, Limestones, Sandstones, Granites and Other Building Stones Quarried in the United States Canada and other Countries., Stone Publishing Co, New York, 1925