Scanning electron micrograph (SEM) of a four-micrometre size iron crystal growing on a pyroxene (calcium-magnesium-iron silicate) crystal from the Apo

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Scanning electron micrograph (SEM) of a four-micrometre size iron crystal growing on a pyroxene (calcium-magnesium-iron silicate) crystal from the Apollo 15 Hadley-Apennine lunar landing site. The well developed crystal faces indicate that the crystal was formed from a hot vapour as the rock was cooling.

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Size: 5570px × 4736px
Photo credit: © NASA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, 15, apollo, astrogeology, astronomical, astronomy, black, crystal, exogeology, growth, hadley-apennine, iron, lunar, monochrome, moon, nasa, program, pyroxene, sample, sem, white