metamict

/ ˈmɛtəˌmɪkt /

adjective

1. 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

Derived Forms

• ˌmetamictiˈzation, noun

Word History and Origins

Origin of metamict¹

C19: from Danish metamikt, from meta- + Greek miktos mixed