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Metamict minerals contain radioactive elements that degrade the crystal structure of the minerals. The degradation occurs primarily through progressive overlapping recoil nuclei collision cascades from α-decays of ^{238}U, ^{232}Th, ^{235}U and their daughter products. We report the results of ^{57}Fe Mössbauer spectroscopy, gamma-ray spectrometry and microprobe analysis of three partially metamict...
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