A lemon-yellow radioactive mineral consisting of hydrated vanadate of uranium, potassium, and other elements.
‘Autunite is relatively abundant locally in Paleozoic-age sedimentary rocks in the vicinity of Jim Thorpe, Carbon County, Pennsylvania, where it is associated with carnotite and a variety of other uranium minerals.’
‘The most common ore of the element is pitchblende, although it is also present in other minerals, such as uraninite, carnotite, uranophane, and coffinite.’
‘It is found in a number of minerals, including vanadinite, carnotite, roscoelite, and patronite.’
Origin
Late 19th century named after Marie Adolphe Carnot (1839–1920), French inspector of mines, + -ite.
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