Stunorthropite

Where it forms, where it's found

Type locality: Summit Group
Cookes Peak Mining District
Luna County
New Mexico
USA
32.5631°, -107.7300°

2recorded occurrences

Source · OpenStreetMap

Crystallography

Crystal system: Triclinic
Space group: #2
Cell parameters: a = 7.9503(2) Å · b = 7.2863(1) Å · c = 7.2424(2) Å
Cell angles: α = 94.397(1) ° · β = 114.556(1) ° · γ = 82.617(1) °
Ratio a:b:c: 1 : 0.916 : 0.911

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
42MoMolybdenum Molybdenum 4 95.950 383.800
56.45%
8OOxygen Oxygen 14 15.999 223.986
32.94%
7NNitrogen Nitrogen 4 14.007 56.028
8.24%
1HHydrogen Hydrogen 16 1.008 16.128
2.37%
Total 679.942 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
42MoMolybdenum	Molybdenum	4	95.950	383.800	56.45%
8OOxygen	Oxygen	14	15.999	223.986	32.94%
7NNitrogen	Nitrogen	4	14.007	56.028	8.24%
1HHydrogen	Hydrogen	16	1.008	16.128	2.37%
	Total	679.942	100.00%

Synonyms

IMA2024-064
Stunorthropiet

In other languages

German: IMA 2024-064 · Stunorthropit

Classification

Strunz

10th ed.

7.GB

7SulfatesClass
7.GMolybdates, Wolframates and NiobatesDivision
7.GBWith additional anions and/or H₂OGroup
7.GBStunorthropiteSpecies

Literature, links & citation

Citations

2025Bosi, Ferdinando; Hatert, Frédéric; Pasero, Marco; Mills, Stuart J. (2025) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 83. European Journal of Mineralogy, 37 (1). 75-78 doi:10.5194/ejm-37-75-2025 DOI: 10.5194/ejm-37-75-2025

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Stunorthropite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/stunorthropite-471620},
  note      = {Accessed 2026-05-11}
}