Thin section of rock brought back to earth by Apollo 12 mission
An idea of the mineralogy and texture of a lunar sample can be achieved by use of color microphotos. This thin section is Apollo 12 lunar sample number 12057.27, under polarized light. The lavender minerals are pyrexene; the black mineral is ilmenite; the white and brown, feldspar; and the remainder, olivine.
APOLLO 12 FLIGHT APOLLO PROJECT JOHNSON SPACE CENTER LABORATORIES LUNAR COMPOSITION LUNAR GEOLOGY LUNAR ROCKS PHOTOMICROGRAPHS SAMPLES TEXAS