uranylian
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uranian — adjective Describing minerals containing hexavalent uranium Twice during a uranian year, the rings appear edge on for a brief period, referred to as a ring plane crossing (RPX). See Also: uranylian, uranoan, trans uranian, transuranian … Wiktionary
uranoan — adjective Describing minerals containing tetravalent uranium See Also: uranylian, uranian … Wiktionary
