A bright yellow-green mineral typically occurring as thin, tabular crystals.
Uranocircite is a hydrated barium uranyl phosphate, Ba(UO2)2(PO4)2·12H2O. Crystal system: tetragonal..
Origin
Late 19th century; earliest use found in American Journal of Science. From urano- + ancient Greek κίρκος falcon + -ite, after German Uranocircit, so called with punning reference to the place where it was discovered, Falkenstein, in Germany.