Other
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986gecoa..50..111g&link_type=abstract
Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 50, Jan. 1986, p. 111-113.
Other
Lunar Rocks, Mineralogy, Petrology, X Ray Analysis, Electron Microscopy, Iron, Metallic Glasses, Spherules, Sulfides, Tektites, Moon, Samples, Lunar, Apollo 14, 14425, Tektites, X-Ray Methods, Edxa, Composition, Comparisons, Classification, Glasses, Description, Spherules, Metal, Iron, Nickel, Phosphorous, Sulfur, Silicon, Formation, Melting, Impact Effects, Procedure
Scientific paper
Energy-dispersive X-ray analysis of a polished section of lunar sample 14425 shows, in contradiction to a previous report, that it has a composition similar to Apollo 14 breccias, but not to high-magnesium microtektites. Lunar sample 14425 is a large (8.006±0.006 mm dia.) glass bead. Sample 14425 is one of the largest glass beads returned from the moon. Semiquantitative analysis of the bead indicated that it has a composition unlike other lunar samples, but similar to high-magnesium microtektites (O'Keefe and Glass, 1985). A polished section was prepared at the Lunar Receiving Laboratory, Johnson Space Center. Quantitative analysis of this section shows that the spherule is extremely homogenous in composition and that the composition is similar to Apollo 14 impact breccias and not to any known terrestrial tektite. It appears that the glass bead was formed by impact melting and that it is not a lunar tektite.
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