Robert Powell reviewed recent testing he completed on a 99.88% pure magnesium sample first obtained in the Ubatuba region of Brazil in 1957. Powell also reviewed the history of the sample, previous chemical testing, isotopic analysis of the magnesium as well as isotopic analysis of impurities in the sample that were in 100ppm levels, namely strontium, barium, zinc, and copper. Lastly he discussed the meaning of the results that he obtained. For more information about the SCU visit: https://www.explorescu.org/