Cousinite
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Jules Cousin
Formula:
MgU2Mo2O11 · 6H2O
Name:
Named in 1958 by J.F. Vaes after Jules Cousin (Comblain-au-Pont, Liège province, Belgium, January 12 1884 - Brussels, November 12 1965). He worked for the Union Minière du Haut-Katanga, in Africa and in Belgium.
Possibly a "Mg-Umohoite". Reinvestigation by modern methods needed.
Davison (1954) describes also an uran molybdate of Mg as monoclinic / pseudo-orthorombic with a = 6.37, b = 33.46, c = 15.0 A and beta = 90°. This mineral is listed in the recent compilation of unnamed species (Smith & Nickel, 2007) as UM1954-// - MoO-MgU.
Davison (1954) describes also an uran molybdate of Mg as monoclinic / pseudo-orthorombic with a = 6.37, b = 33.46, c = 15.0 A and beta = 90°. This mineral is listed in the recent compilation of unnamed species (Smith & Nickel, 2007) as UM1954-// - MoO-MgU.
Classification of Cousinite
Approved, 'Grandfathered' (first described prior to 1959), Questionable
7.HA.10
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
H : Uranium and uranyl molybdates and wolframates
A : With U4+
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
H : Uranium and uranyl molybdates and wolframates
A : With U4+
49.3.2.1
49 : HYDRATED MOLYBDATES AND TUNGSTATES
3 : Hydrated Molybdates and Tungstates Containing Hydroxyl or Halogen
49 : HYDRATED MOLYBDATES AND TUNGSTATES
3 : Hydrated Molybdates and Tungstates Containing Hydroxyl or Halogen
27.3.10
27 : Sulphites, Chromates, Molybdates and Tungstates
3 : Molybdates
27 : Sulphites, Chromates, Molybdates and Tungstates
3 : Molybdates
Chemical Properties of Cousinite
Formula:
MgU2Mo2O11 · 6H2O
IMA Formula:
MgU4+2(MoO4)2(OH)6 · 2H2O (?)
Type Occurrence of Cousinite
Other Language Names for Cousinite
Related Minerals - Nickel-Strunz Grouping
| 7.HA.05 | Sedovite | U(MoO4)2 | Orth. |
| 7.HA.15 | Moluranite | H4U4+(UO2)3(MoO4)7 · 18H2O | Amor. |
Related Minerals - Hey's Chemical Index of Minerals Grouping
| 27.3.1 | Lindgrenite | Cu3(MoO4)2(OH)2 | Mon. 2/m : P21/m |
| 27.3.2 | Powellite | Ca(MoO4) | Tet. 4/m : I41/a |
| 27.3.3 | Wulfenite | Pb(MoO4) | Tet. 4/m : I41/a |
| 27.3.4 | Koechlinite | Bi2MoO6 | Orth. mm2 : Pna21 |
| 27.3.5 | Sedovite | U(MoO4)2 | Orth. |
| 27.3.6 | Mourite | UMo5O12(OH)10 | Mon. |
| 27.3.7 | Iriginite | (UO2)Mo2O7 · 3H2O | Orth. mmm (2/m 2/m 2/m) : Pbcm |
| 27.3.8 | Umohoite | (UO2)MoO4 · 2H2O | Tric. |
| 27.3.9 | Moluranite | H4U4+(UO2)3(MoO4)7 · 18H2O | Amor. |
| 27.3.11 | Calcurmolite | (Ca,Na)2(UO2)3Mo2(O,OH)11 · nH2O | Mon. |
| 27.3.12 | Tengchongite | CaO · 6UO3 · 2MoO3 · 12H2O | Orth. |
| 27.3.13 | Kamiokite | Fe2Mo3O8 | Hex. |
| 27.3.14 | Ferrimolybdite | Fe2(MoO4)3 · nH2O | Orth. mmm (2/m 2/m 2/m) : Pmmn |
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.
References for Cousinite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Davidson, G.F. (1954) in Summary of progress Geol. Surv. G. Gr.: 70.
Vaes, J.F. (1958) Cousiniet, een nieuw uraanmineral. Geologie en Mijnbouw: 20: 449.
Fleischer, M. (1959) New Mineral Names. American Mineralogist: 44: 906-910.
Deliens, M. (1975) Une association de molybdates d'uranium de Shinkolobwe (région du Shaba, République du Zaïre). Annales de la Société Géologique de Belgique: 98: 155-160.
Deliens, M., Piret, P. (1976) Nouvelles sonnées sur une umohoite magnésienne de Shinkolobwe (région du Shaba, République du Zaïre). Annales de la Société Géologique de Belgique: 99: 205-209.
Internet Links for Cousinite
mindat.org URL:
https://www.mindat.org/min-1143.html
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Localities for Cousinite
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The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for 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.
DR Congo (TL) | |
| Vaes, J.F. (1958) Cousiniet, een nieuw uraanmineraal. Geologie en Mijnbouw, 20, 12, 449 (in Dutch).; Fleischer, M. (1959) New Mineral Names. American Mineralogist, 44(7-8), 910.; Deliens, M. (1996) Overzicht van de mineralogie van de koper-, kobalt- en uraniumvoorkomens in Zuid-Shaba (Zaïre). Pages 35-49 in: Schatten der Aarde. Van mineraal tot juweel. Tentoonstelling in de abdij Saint-Gérard de Brogne van 27 april tot 27 oktober 1996. Catalogus opgemaakt onder de leiding van R. Warin, AGAB en P. Van hee, MKA (in Dutch). |