Uroxite and metauroxite, the first two uranyl oxalate minerals

Uroxite (IMA2018-100), [(UO 2 ) 2 (C 2 O 4 )(OH) 2 (H 2 O) 2 ]⋅H 2 O, and metauroxite (IMA2019-030), (UO 2 ) 2 (C 2 O 4 )(OH) 2 (H 2 O) 2 , are the first two uranyl oxalate minerals. Uroxite was found in the Markey mine, Red Canyon, San Juan County, Utah, USA and in the Burro mine, Slick Rock district, San Miguel County, Colorado, USA. Metauroxite was found only in the Burro mine. Both minerals are post-mining secondary phases found in...