Noon. The witness was fishing together with various friends, at a place close to the town of Ubatuba when he sighted a flying disc approached the beach at unbelievable speed, and an accident, crash, into the sea, seemed imminent. At the last moment, however, when it seemed it was almost striking the waters, it made a sharp turn upward and climbed rapidly. Astonished, all the witnesses followed the spectacle with thier eyes, when they saw the disc explode into thousands of fiery fragments, which fell sparkling with magnificent brightness. They looked like fireworks, despite the time of the accident, at noon (midday). Most of the fragments, almost all, fell into the sea, but a number of small pieces fell close to the beach, and they picked up a large amount of this material ­ which was light as paper. The report was made by the witness to a columnist, and a sample of the material was provided. (Synopsis of a letter sent to El Globo society columnist, Mr. Ibrahim Sued). Three small pieces were provided. There have been numerous evaluations, all posted in the links below. Paul Hill discussed the results of his analysis. Laboratory analysis of the samples found the magnesium to be not only of exceptional purity, and anomalous in its trace composition of other elements, but 6.7% denser than ordinary pure magnesium, a figure well beyond the experimental error of the measurement. Hill's calculation shows that this observation can be accounted for by assuming that the sample contained only the pure isotope Mg-26, rather than the naturally-occurring distribution among isotopes Mg-24, Mg-25, and Mg-26. Since the only isotope separation on a significant scale in terrestrial manufacture is that of uranium, such a result must be considered at least anomalous, and possibly as evidence for extraterrestrial manufacture