A scanning electron microscope study of olivine crystal surfaces

Details A scanning electron microscope study of olivine crystal surfaces A scanning electron microscope study of olivine crystal surfaces

Sep 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974metic...9..243o&link_type=abstract

Meteoritics, vol. 9, Sept. 30, 1974, p. 243-254. Research supported by the Research Corp. and University of Chicago;

Physics

3

Chondrites, Crystal Surfaces, Electron Microscopes, Meteoritic Microstructures, Olivine, Basalt, Crystal Growth, Lunar Rocks, Phase Transformations, Single Crystals, Volcanology

Scientific paper

SEM photographs were taken of euhedral olivine grains from the Murchison C2 chondrite and several terrestrial and lunar occurrences. In general, the crystal faces of the meteorite grains are rough and uneven, with irregular growth patterns. They are very similar to crystal faces on terrestrial olivine grains that formed by sublimation from a vapor phase. They are very different from the relatively smooth and featureless surfaces of magmatic olivine crystals that precipitated from igneous melts. Qualitatively, the surface morphology of the crystal supports the contention that many euhedral crystals of olivine in C2 meteorites condensed from a gas phase.

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