Zircon and Chromite Crystals in a Muong Nong-Type Tektite
- 21 August 1970
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 169 (3947) , 766-769
- https://doi.org/10.1126/science.169.3947.766
Abstract
Chromite, zircon, and quartz crystals (identified by x-ray diffraction) have been recovered from a 2.07-gram sample of Muong Nong-type tektite. The absence of eskolaite (Cr 2 O 3 ) and baddeleyite (ZrO 2 ) supports a previous conclusion that Muong Nong-type tektites were not heated as intensely as other tektite groups. X-ray asterism studies indicate that the crystals are shocked, which supports an impact origin. The presence of chromite and zircon together suggests that the Muong Nong-type tektite was produced from sedimentary material.Keywords
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