Shumwayite

Shumwayite
General
Category Sulfate
Formula
(repeating unit)		 (UO2)2(SO4)2•5H2O
Crystal system Monoclinic
Unit cell a = 6.75 Å, b = 12.50 Å
c = 16.90 Å, β = 90.92° (approximated)
Identification
Crystal symmetry Monoclinic - prismatic
H-M symbol (2/m)
Space group: P21/c
References [1]

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]

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

  1. 1 2 3 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
  2. ↑ "Shumwayite: Shumwayite mineral information and data". Mindat.org. Retrieved 2016-03-13.
  3. ↑ "Jáchymovite: Jáchymovite mineral information and data". Mindat.org. Retrieved 2016-03-13.
  4. ↑ "Metauranopilite: Metauranopilite mineral information and data". Mindat.org. Retrieved 2016-03-13.
  5. ↑ "Uranopilite: Uranopilite mineral information and data". Mindat.org. Retrieved 2016-03-13.
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