Meteoric oxidation zone of Sandstone-type uranium
Sandstone-type uranium + Meteoric oxidation zone
Required Geological Setting
Occurrence
Meteoric oxidation zone of sandstone-type uranium deposit. Meteoric-type upper oxidation zones and/or gossan zones formed by ground water of meteoric origin. Limonite and secondary uranium minerals were formed from primary minerals such as pyrite, uraninite, coffinite, and ningyoite.
Mineral Assemblages
Limonite, β-uranophane, Uranophane, Boltwoodite, Haiweeite, Weeksite, Autunite, Torbernite, Carnotite