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A scanning electron microscope study of olivine crystal surfacesSEM 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.
Document ID
19750028094
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Olsen, E. J.
(Field Museum of Natural History Chicago, Ill., United States)
Grossman, L.
(Chicago, University Chicago, Ill., United States)
Date Acquired
August 8, 2013
Publication Date
September 30, 1974
Publication Information
Publication: Meteoritics
Volume: 9
Subject Category
Lunar And Planetary Exploration
Accession Number
75A12166
Funding Number(s)
CONTRACT_GRANT: NGR-14-052-001
CONTRACT_GRANT: NGR-14-001-249
Distribution Limits
Public
Copyright
Other

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