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Harney Peak Granite

Pink to tan, finely crystalline to pegmaticic, peraluminous, muscovite granite and pegmatite containing accessory biotite, garnet, apatite, and tourmaline. Batholith body is dome-shaped with numerous smaller dikes and sills.
State South Dakota
Name Harney Peak Granite
Geologic age Proterozoic | Paleoproterozoic
Primary rock type granite
Secondary rock type
Other rock types
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Granite (Batholith)
Map references
Martin, J. E., Sawyer, J. F., Fahrenbach, M. D., Tomhave, D. W., and Schulz, L. D., 2004, Geologic Map of South Dakota: South Dakota Geological Survey
Unit references
Martin, J. E., Sawyer, J. F., Fahrenbach, M. D., Tomhave, D. W., and Schulz, L. D., 2004, Geologic Map of South Dakota: South Dakota Geological Survey
Counties Custer - Pennington