ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
Quartz diorite, thin section. Light micrograph taken with polarised light. This is a coarse-grained, holocrystalline igneous rock dominated by altered plagioclase (40 vol%), hornblende (50%) and quartz (10%), with minor zircon, sericite (white mica) and chlorite. Horizontal object size: 2.0 mm.
Model release not required. Property release not required.