Arsenosabugalite

H0.5Al0.5(UO2)2(AsO4)2·8H2O
IMA status
  • Approved
  • Pending publication
IMA symbol
Asbg
Also known as
  • Arsenosabugaliet
  • IMA2025-048

Where it forms, where it's found

Type locality
Hubbard Homestead Mine
  1. Beaver Mesa
  2. Gateway Mining District
  3. Mesa County
  4. Colorado
  5. USA

38.6334°, -109.0171°

1recorded occurrences
Source · OpenStreetMap

Radioactivity

Crystallography

Crystal system
Triclinic
Space group
#2
Cell parameters
a = 7.090(1) Å · b = 7.107(1) Å · c = 19.779(5) Å
Cell angles
α = 85.04(2) ° · β = 83.99(2) ° · γ = 89.954(1) °
Ratio a:b:c
1 : 1.002 : 2.790

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
92UUraniumUranium2238.029476.058
48.78%
8OOxygenOxygen2015.999319.980
32.79%
33AsArsenicArsenic274.922149.844
15.35%
1HHydrogenHydrogen16.51.00816.632
1.70%
13AlAluminiumAluminium0.526.98213.491
1.38%
Total976.005100.00%

Mass share = atoms × atomic mass ÷ molar mass × 100

From Mindat formula

Synonyms

  • Arsenosabugaliet
  • IMA2025-048

In other languages

German
Arsenosabugalit · IMA 2025-031a

Classification

Strunz
10th ed.

8.EB.55

  • 8Phosphates, Arsenates, VanadatesClass
  • 8.EUranyl phosphates and arsenatesDivision
  • 8.EBUO2:RO4 = 1:1Group
  • 8.EB.55ArsenosabugaliteSpecies

Group, growth & confusion

Literature, links & citation

Citations
  1. 2025Bosi, Ferdinando; Hatert, Frédéric; Pasero, Marco; Mills, Stuart J. (2025) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 88. Mineralogical Magazine, 89. 1-11 doi:10.1180/mgm.2025.10183DOI: 10.1180/mgm.2025.10183
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Arsenosabugalite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/arsenosabugalite-498764},
  note      = {Accessed 2026-05-11}
}