Shumwayite
Shumwayite is a rare[2] 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.[1]
| Shumwayite | |
|---|---|
 Yellow green crystals of the rare new uranium mineral shumwayite (IMA 2015-058) on a contrasting black matrix from the type locality in Utah (Giveway-Simplot Mine, Red Canyon, San Juan County, Utah. | |
| General | |
| Category | Sulfate mineral |
| Formula (repeating unit) | (UO2)2(SO4)2•5H2O |
| 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 |  |
| References | [1] |
Relation to other minerals
The structure of shumwayite is unique.[1] Somewhat chemically similar natural uranyl sulfates include jáchymovite, metauranopilite and uranopilite.[3][4][5]
References
- Kampf, A.R., Plášil, J., Kasatkin, A.V., Marty, J.,Čejka, J., and Lapčák, L., 2015. Shumwayite, IMA 2015-058. CNMNC Newsletter No. 27, October 2015, 1228; Mineralogical Magazine 79, 1229–1236
- "Shumwayite: Shumwayite mineral information and data". Mindat.org. Retrieved 2016-03-13.
- "Jáchymovite: Jáchymovite mineral information and data". Mindat.org. Retrieved 2016-03-13.
- "Metauranopilite: Metauranopilite mineral information and data". Mindat.org. Retrieved 2016-03-13.
- "Uranopilite: Uranopilite mineral information and data". Mindat.org. Retrieved 2016-03-13.
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