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Shumwayite

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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
CategorySulfate mineral
Formula
(repeating unit)
(UO2)2(SO4)2•5H2O
IMA symbolSmw[1]
Crystal systemMonoclinic
Crystal classPrismatic (2/m)
(same H-M symbol)
Space groupP21/c
Unit cella = 6.75 Å, b = 12.50 Å
c = 16.90 Å, β = 90.92° (approximated)
Identification
Other characteristics Radioactive
References[2]

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]

Relation to other minerals

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The structure of shumwayite is unique.[2] Somewhat chemically similar natural uranyl sulfates include jáchymovite, metauranopilite and uranopilite.[4][5][6]

References

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  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ a b c 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
  3. ^ "Shumwayite: Shumwayite mineral information and data". Mindat.org. Retrieved 2016-03-13.
  4. ^ "Jáchymovite: Jáchymovite mineral information and data". Mindat.org. Retrieved 2016-03-13.
  5. ^ "Metauranopilite: Metauranopilite mineral information and data". Mindat.org. Retrieved 2016-03-13.
  6. ^ "Uranopilite: Uranopilite mineral information and data". Mindat.org. Retrieved 2016-03-13.