Meteoritic Zircon

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Science  13 Nov 1964:
Vol. 146, Issue 3646, pp. 919-920
DOI: 10.1126/science.146.3646.919


Zircon (ZrSiO5) has been identified as an accessory mineral in the Vaca Muerta mesosiderite and in the troilite nodules of the Toluca iron meteorite. The occurrence in Vaca Muerta is a new discovery confirmned by electron-probe nmicroanalysis of a grain in a polished section of the meteorite. Our identification of zircon in Toluca substantiates an occurrence in this meteorite reported in 1895 by Laspeyres and Kaiser.