Shumwayite is a rare[3] but relatively simple uranyl sulfate mineral with the formula (UO2)2(SO4)2•5H2O. It was discovered in the Green Lizard and Giveaway-Simplot mines of the White Canyon mining district, San Juan County, Utah, US.[2]
Shumwayite | |
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General | |
Category | Sulfate mineral |
Formula (repeating unit) | (UO2)2(SO4)2•5H2O |
IMA symbol | Smw[1] |
Crystal system | Monoclinic |
Crystal class | Prismatic (2/m) (same H-M symbol) |
Space group | P21/c |
Unit cell | a = 6.75 Å, b = 12.50 Å c = 16.90 Å, β = 90.92° (approximated) |
Identification | |
Other characteristics | Radioactive |
References | [2] |
The structure of shumwayite is unique.[2] Somewhat chemically similar natural uranyl sulfates include jáchymovite, metauranopilite and uranopilite.[4][5][6]