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This is a report of the first unambiguous discovery of rare earth elements (REE) in iron sulfide (FeS) in an ordinary chondrite. The content and the pattern of REE as well as the reduced state of the chondrules with the REE-containing sulfide suggest that the sulfide inside the Bishunpur (LL3.1) chondrules is of igneous origin, formed during crystallization of the chondrule melts. The similarities...
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