English: Plate XXIII C, Original caption: "Bared slope of granite gneiss, Beverly Quarry, Beverly Station, Pickens County, SC."

Text from the volume referring to this figure:
The Beverly quarry, operated in 1908 by the Greenville Crushed Stone Company, is located at Beverly station, on the northwest side of the Atlanta and Charlotte division of the Southern Railway. The railroad extends along the southeastern base of the doming ridge in which the quarry is opened. The rock is a contorted biotite granite gneiss of medium to dark gray color and medium grain. It consists of white potash feldspar (orthoclase and microcline), white soda-lime feldspar (oligocla.se), clear or barely smoky quartz, black mica (biotite), and a little white mica (muscovite), together with accessory titanite, zircon, apatite, and iron oxide and secondary chlorite, epidote, and colorless mica. Orthoclase is partly intergrown with a second feldspar as microperthite. Microcline shows evidence of having been derived in part from orthoclase. Micropegmatite intergrowths as small areas are indicated, and some of the larger feldspar individuals show micropoikilitic structure (inclosures of rounded quartz chiefly). Granulation of the quartz and feldspar is pronounced and orientation of the biotite is usually well marked. In the hand specimens much titanite is visible in association with the biotite. Here and there pyrite is noted. ...

The quarry was opened about 1894 and is approximately 300 by 405 feet, with a vertical face of 80 feet, the greatest depth of working. Sheeting does not occur and pegmatites and knots have very scanty development, only a few small ones being observed. There is no stripping. (See Pl. XXIII, C.)