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Toxaway Gneiss

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Banded granite gneiss consisting of very light gray layers rich in quartz, plagioclase, and microcline alternating with dark gray biotite-rich layers
State South Carolina
Name Toxaway Gneiss
Geologic age Mesoproterozoic
Lithologic constituents
Major
Metamorphic > Gneiss
Comments Blue Ridge
References

Horton, J.Wright, and Dicken, Connie L., 2001, Preliminary Geologic Map of the Appalachian Piedmont and Blue Ridge, South Carolina Segment: U.S. Geological Survey, Open-File Report 01-298, CD, scale 1:500,000.

https://pubs.er.usgs.gov/publication/ofr01298
Counties Oconee