Metauroxite

metauroxite

uroxite

tyuyamunite

uranopilite

Images

Formula: (UO2)2(C2O4)(OH)2(H2O)2
Organic compound, oxalate, uranyl mineral
Crystal system: Triclinic
Specific gravity: 4.403 calculated
Hardness: 2
Streak: Very pale yellow
Colour: Light yellow
Luminescence: Weak green-grey fluorescence under 405 nm laser illumination
Solubility: Insoluble in water and slowly soluble in dilute hydrochloric acid
RADIOACTIVE
Environments

Sedimentary environments
Hydrothermal environments

Metauroxite is a relatively new mineral, approved in 2019.

Localities

At the Type Locality, the Burro Mine, San Miguel County, Colorado, USA, metauroxite is a post-mining secondary phase found in efflorescent crusts on mine walls on bitumen-quartz matrix in uranium-vanadium deposits in sandstone. Oxalate, (C2O4)2-, likely derived from the asphaltite matrix (probably fossilised wood) and the uranyl, (UO2)2+, from primary (especially uraninite) and/or secondary uranium-bearing minerals. Associated minerals include uroxite, abernathyite, gypsum, tyuyamunite and uranopilite (HOM).
Metauroxite from the Burro Mine - Image

Back to Minerals