Lunar Sample 14425: Characterization and Resemblance to High-Magnesium Microtektites

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Science  01 Feb 1985:
Vol. 227, Issue 4686, pp. 515-516
DOI: 10.1126/science.227.4686.515


Measurements by energy-dispersive x-ray analysis of the surface of lunar sample 14425, a large glass bead, yield a noritic composition enriched in aluminum and magnesium and, as compared with other norites, depleted in iron and especially calcium. The sample is close in composition to the most basic microtektites. Spherical inclusions of nickel-iron, flattened where they protrude, are found to be enriched in sulfur and phosphorus, at least at the surface. The inclusions form approximately 1 percent of the volume.