MICHAEL SZOENYI / SCIENCE PHOTO LIBRARY MICHAEL SZOENYI / SCIENCE PHOTO LIBRARY
Red granite sample. Granite is an intrusive igneous rock consisting of the minerals quartz, feldspar and mica. This reddish granite consists of the black mica biotite, white quartz, and red plagioclase feldspar crystals. This sample is from the Rock of Ages Quarry, Barre, Vermont, USA, the world's largest granite quarry.
Model release not required. Property release not required.