Tektite
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Tektite
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Small glassy bodies containing no crystals, composed of at least 65
percent silicon dioxide, bearing no relation to the geological formations in
which they occur, and believed to be of extraterrestrial origin. Tektites are
found in certain large areas called strewn fields. They are named, as
are minerals, with the suffix ite , as australite , found in
Australia, billitonite, indochinite , and rizalite , found in
Southeast Asia, bediasite from Texas, and moldavite from Bohemia
and Moravia.
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References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use