- A yellow monoclinic mineral, Fe(UO2 )2 (PO4 )2
.8H2 O ; meta-autunite group.
Dictionary of Mining, Mineral, and Related Terms
U = 51.0 percent.
Color: Yellow. Rare secondary mineral.
Source: Frondel, Judith Weiss and Michael Fleischer. 1955. Glossary of
Uranium- and Thorium-Bearing Minerals, Third Edition. Washington DC: United
States Government Printing Office