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Andersonite: Na2Ca(UO2)(CO3)3·6(H2O)
Comments: Yellow crusts of andersonite in sandstone. Location: Atomic King mine, San Juan County, Utah, USA. Scale: 4x3x2 cm. © John Veevaert
Comments: Veins of bright yellowish green, andersonite in sandstone. The fluorescence of this mineral is noticeable under ambient office lighting plus a UV lamp. Location: Atomic King Mine, Cane Creek Canyon, Grand County, Utah, USA. Scale: Specimen size 6 cm. © Paul M. Schumacher