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Stunorthropite
A valid IMA mineral species - pending publication
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About Stunorthropite
Dr. Stuart A. Northrop. C. 1960
Formula:
(NH4)4[Mo2O6(MoO4)2]
Crystal System:
Triclinic
Name:
Named in honor of Dr. Stuart A. Northrop (1904–1994). Stu was a professor of geology at the University of New Mexico from 1928 to 1969. He is the author of the most comprehensive work on the mineralogy of New Mexico, "Minerals of New Mexico". First published as a book in 1944, it has undergone several major revisions and is currently in its third edition (ISBN 10: 082631662X).
This page provides mineralogical data about Stunorthropite.
Unique Identifiers
Mindat ID:
471620
Long-form identifier:
mindat:1:1:471620:0
IMA Classification of Stunorthropite
Approved, Pending publication
IMA Formula:
(N3-H4)4[Mo6+2O6(Mo6+O4)2]
Approval year:
2024
Approval history:
IMA 2024-064
Classification of Stunorthropite
7.GB.
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
B : With additional anions and/or H2O
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
B : With additional anions and/or H2O
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Snp | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Chemistry of Stunorthropite
Mindat Formula:
(NH4)4[Mo2O6(MoO4)2]
Element Weights:
Elements listed:
Crystallography of Stunorthropite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 7.9503(2) Å, b = 7.2863(1) Å, c = 7.2424(2) Å
α = 94.397(1)°, β = 114.556(1)°, γ = 82.617(1)°
α = 94.397(1)°, β = 114.556(1)°, γ = 82.617(1)°
Ratio:
a:b:c = 1.091 : 1 : 0.994
Unit Cell V:
378.31 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.202 Å | (39) |
| 6.343 Å | (100) |
| 5.072 Å | (38) |
| 4.831 Å | (57) |
| 3.651 Å | (73) |
| 3.351 Å | (53) |
| 3.291 Å | (50) |
| 3.194 Å | (16) |
Type Occurrence of Stunorthropite
Place of Conservation of Type Material:
Type material is deposited in the collections of the New Mexico Bureau of Geology, Mineral Resources & Mineral Museum, 801 Leroy Place, Socorro, NM 87801-4796, USA, catalogue no. 19195 (holotype), and the RRUFF Project, deposition no. R240001 (cotype)
Synonyms of Stunorthropite
Other Language Names for Stunorthropite
Dutch:Stunorthropiet
German:Stunorthropit
Common Associates
Associations Based on Photo Data:
| 1 photo of Stunorthropite associated with Sidwillite | MoO3 · 2H2O |
Related Minerals - Strunz-mindat Grouping
| 7.GB. | Hartkoppeite | Ca4Mn2+Mo6+6As5+4O32(OH)2(H2O)14 · 5H2O |
| 7.GB. | Wangpuite | K3(PO4)(Mo12O36) |
| 7.GB. | Alexearlite | Hg3S2(MoO4) |
| 7.GB. | Ootannite | Th4+2W6+4O16 · 5H2O |
| 7.GB. | Natromolybdite | Na2MoO4 · 2H2O |
| 7.GB. | Marsaalamite-(Y) | Y(MoO4)(OH) |
| 7.GB.05 | Lindgrenite | Cu3(MoO4)2(OH)2 |
| 7.GB.10 | Szenicsite | Cu3(MoO4)(OH)4 |
| 7.GB.15 | 'UM1999-38-WO:CrV' | (V, Cr, W, O, H) [V:Cr:W ratio about 2:1:3] |
| 7.GB.15 | Huenite | Cu4(MoO4)3(OH)2 |
| 7.GB.15 | Cuprotungstite | Cu2(WO4)(OH)2 |
| 7.GB.20 | Phyllotungstite | (H2O,M)x(W,Fe)(O,OH)3 · yH2O (M = Ca, Cs, Pb or K) |
| 7.GB.25 | Rankachite | Ca0.5(V4+,V5+)(W6+,Fe3+)2O8(OH) · 2H2O |
| 7.GB.30 | Ferrimolybdite | Fe2(MoO4)3 · nH2O |
| 7.GB.35 | Mpororoite | WAlO3(OH)3 · 2(H2O) |
| 7.GB.35 | Anthoinite | AlWO3(OH)3 |
| 7.GB.40 | Obradovicite-KCu | [K2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3] |
| 7.GB.45 | Paramendozavilite | [KAl4(H2O)30][Mo12P6Fe3+6O60(OH)13] |
| 7.GB.45 | Mendozavilite-NaFe | [Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2] |
| 7.GB.45 | Obradovicite-NaCu | Na2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3] |
| 7.GB.45 | Obradovicite-NaNa | [Na2(H2O)16Na(H2O)6][Mo8As2Fe3+3O33(OH)4] |
| 7.GB.50 | Tancaite-(Ce) | FeCe(MoO4)3 · 3H2O |
| 7.GB.50 | Mendozavilite-NaCu | [Na2(H2O)15Cu(H2O)6][Mo8P2Fe3+3O34(OH)3] |
| 7.GB.50 | Mendozavilite-KCa | [K2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O34(OH)3] |
| 7.GB.60 | Peterandresenite | Mn4Nb6O19 · 14H2O |
| 7.GB.60 | Hansesmarkite | Ca2Mn2Nb6O19 · 20H2O |
| 7.GB.60 | Melcherite | Ba2Na2Mg[Nb6O19] · 6H2O |
| 7.GB.65 | Ichnusaite | Th(MoO4)2 · 3H2O |
| 7.GB.70 | Markascherite | Cu3(MoO4)(OH)4 |
| 7.GB.75 | Nuragheite | Th(MoO4)2 · H2O |
| 7.GB.80 | Ophirite | Ca2Mg4[Zn2Mn3+2(H2O)2(Fe3+W9O34)2] · 46H2O |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Stunorthropite
mindat.org URL:
https://www.mindat.org/min-471620.html
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References for Stunorthropite
Localities for Stunorthropite
Showing 2 localities.
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The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
USA (TL) | |
| Bosi et al. (2025) |
| Bosi et al. (2025) |
Cookes Peak Mining District, Luna County, New Mexico, USA