metamict

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metamict

(ˈmɛtəˌmɪkt)
adj
(Chemistry) of or denoting the amorphous state of a substance that has lost its crystalline structure as a result of the radioactivity of uranium or thorium within it: metamict minerals.
[C19: from Danish metamikt, from meta- + Greek miktos mixed]
ˌmetamictiˈzation, ˌmetamictiˈsation n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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Metamictisation of natural zircon: Accumulation versus thermal annealing of radioactivity-induced damage.