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  • 1
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    Unknown
    The Ellicott meteorite (1974)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Two medium octahedrite iron meteorites recently found near Ellicott, Colorado, are described and compared to a medium octahedrite iron meteorite discovered in 1902 at nearby Franceville, Colo. Based on the Ni, Ga, Ge, and Ir contents, the pronounced differences in shock history, and the differences in average kamacite bandwidth, it is clear that Ellicott is a new meteorite, distinct from the Franceville find.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Meteoritics; 9; Dec. 31
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    A scanning electron microscope study of olivine crystal surfaces (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: 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.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Meteoritics; 9; Sept. 30
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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