GRD02JBS0
G1201
Non-layered Gneiss
Precambrian › Proterozoic › Mesoproterozoic › Stenian
1000.0
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1200.0
0
Ritter 154 › Cabinet 24 › Drawer A
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gneiss (leucocratic granulite : pinkish white quartzofeldspathic gneiss; Q, perthite (Kspar) with minor accessory apatite, zircon, OPX, CPX, biotite, hornblende, oxides. Feldspars are altered to white mica and epidote resulting in the distinctive pink appearance. Originally granulite metamorphism subjected to later hydrothermal alteration)
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Big Marys Creek, VA
Virginia
20 km NE of Lexington; Big Marys Creek
Latitude: 38.8726°
Longitude: -79.206°
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N/A
N/A
N/A
Wilkes_VDMR_2007
Wilkes, G.P., Spencer, E.W., Evans, N.H., Campbell, E.V.M., 2007, Geology of Rockbridge County, Virginia: Virginia Division of Mineral Resources Publication 170, 33 p.