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4½ - 5
Member of:
After Dr. Arthur Lennox Coulson (25 January 1898, Elsternwick, Victoria, Australia - 1955, Melbourne, Australia), Geological Survey of India.
Initially described from Bihar, India in 1936 as vanado-magnetite, renamed the following year as coulsonite (these specimens contain up to 4.84% vanadium). Species was redefined in 1962 on Nevada material.

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Classification of CoulsoniteHide

Approved, 'Grandfathered' (first described prior to 1959)

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
B : Metal: Oxygen = 3:4 and similar
B : With only medium-sized cations

2 : AB2X4

7 : Oxides and Hydroxides
12 : Oxides of V, Nb and Ta

Physical Properties of CoulsoniteHide

4½ - 5 on Mohs scale

Chemical Properties of CoulsoniteHide


Type Occurrence of CoulsoniteHide

Other Language Names for CoulsoniteHide

Simplified Chinese:钒磁铁矿

Relationship of Coulsonite to other SpeciesHide

Member of:
Other Members of this group:
ChromiteFe2+Cr3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
FrankliniteZn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
GahniteZnAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
GalaxiteMn2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
HercyniteFe2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
JacobsiteMn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
MagnesiochromiteMgCr2O4Iso. m3m (4/m 3 2/m) : Fd3m
MagnesioferriteMgFe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
MagnetiteFe2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
Nichromite(Ni,Co,Fe)(Cr,Fe,Al)2O4Iso. m3m (4/m 3 2/m) : Fd3m
SpinelMgAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
TrevoriteNi2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
XieiteFe2+Cr2O4Orth. mmm (2/m 2/m 2/m)

Common AssociatesHide

Associated Minerals Based on Photo Data:
Mukhinite4 photos of Coulsonite associated with Mukhinite on
Pyrrhotite4 photos of Coulsonite associated with Pyrrhotite on
Magnetite3 photos of Coulsonite associated with Magnetite on
Diopside2 photos of Coulsonite associated with Diopside on

Related Minerals - Nickel-Strunz GroupingHide

4.BB.ChenmingiteFeCr2O4Orth. mmm (2/m 2/m 2/m) : Pnma
4.BB.05ChromiteFe2+Cr3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05FrankliniteZn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05GahniteZnAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05GalaxiteMn2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05HercyniteFe2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05JacobsiteMn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05MagnesiochromiteMgCr2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05MagnesioferriteMgFe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05MagnetiteFe2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05Nichromite(Ni,Co,Fe)(Cr,Fe,Al)2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05SpinelMgAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05TrevoriteNi2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.10HausmanniteMn2+Mn3+2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
4.BB.10HetaeroliteZnMn2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
4.BB.10HydrohetaeroliteZnMn2O4 · H2OTet. 4/mmm (4/m 2/m 2/m) : I41/amd
4.BB.10IwakiiteMn2+Fe3+2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
4.BB.15MaghemiteFe3+2O3Iso. 4 3 2 : P41 3 2
4.BB.15TitanomaghemiteFe3+(Fe3+,Ti4+,Fe2+,◻)2O4Iso. 4 3 2 : P43 3 2
4.BB.25XieiteFe2+Cr2O4Orth. mmm (2/m 2/m 2/m)

Related Minerals - Dana Grouping (8th Ed.)Hide

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.12.2 ScherbinaiteV5+2O5
7.12.5DuttoniteV4+O(OH)2Mon. 2/m
7.12.7LenobliteV4+2O4 · 2H2OOrth. 2 2 2 : P21 21 21
7.12.8NavajoiteFe3+V5+9O24 · 12H2OMon. 2/m : B2/m
7.12.9VanoxiteV4+4V5+2O13 · 8H2O
7.12.10BarianditeAl0.6(V5+,V4+)8O20 · 9H2OMon.
7.12.11Corvusite(Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2OMon.
7.12.12SimplotiteCaV4+4O9 · 5H2OMon.
7.12.13KyzylkumiteV3+Ti2O5(OH)Mon. 2/m : P21/b
7.12.17MannarditeBa(Ti4+6V3+2)O16Tet. 4/m : I41/a
7.12.23Kimrobinsonite(Ta,Nb)(OH)5-2x(O,CO3)x ; x near 1.2Iso.

Other InformationHide

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 CoulsoniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dunn (1937), Geological Survey of India, mem.: 49: 21.
Dunn and Dey (1937), Mining Geol. Institute of India, Transactions: 31: 131.
Initially described from Bihar, India in 1936 as vanado-magnetite, renamed the following year as coulsonite (these specimens contain up to 4.84% vanadium). Species was redefined in 1962 on Nevada material: 702.
Radtke, A. S. (1962) American Mineralogist: 47, 1284-1291.

Internet Links for CoulsoniteHide

Localities for CoulsoniteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Northern Finland Region
    • Vihanti
Sergeeva, N. E., Eremin, N. I., & Dergachev, A. L. (2011, February). Vanadium mineralization in ore of the Vihanti massive sulfide base-metal deposit, Finland. In Doklady Earth Sciences (Vol. 436, No. 2, pp. 210-212). SP MAIK Nauka/Interperiodica.
Am Min 47 (1962), 1284
  • Pavlodar Province (Pavlodar Oblysy; Pavlodarskaya Oblast')
Brearley, A. J. & Jones, R. H. (1998). Chondritic Meteorites. In: Planetary Materials (Papike, J. J., Editor): Chapter 3, 398 pages. Mineralogical Society of America: Washington, DC, USA. (1998)
  • Chihuahua
    • Pueblito de Allende
Ma, C., Paque, J., & Tschauner, O. (2016, March). Discovery of Beckettite, Ca2V6Al6O20, a New Alteration Mineral in a V-Rich Ca-Al-Rich Inclusion from Allende. In Lunar and Planetary Science Conference (Vol. 47, p. 1704).
  • Far-Eastern Region
    • Amurskaya Oblast'
      • Dambuki ore cluster
Pavel M. Kartashov analytical data
  • Northern Region
    • Murmanskaya Oblast'
      • Khibiny Massif
        • Lovchorr Mt
Karpov S.M., Voloshin A.V., Savchenko E.E., Selivanova E.A., Polekhovskii Yu.S. (2012) coulsonite in pyrrhotite gorge deposit (Kola peninsula): the first find in Russia, - Doklady RAN, 445/2, p. 1-3 (in Russ.)
      • Pechengsky District
        • Pechenga Ni-Cu ore field
Компанченко А.А., Волошин А.В., Базай А.В. Ванадиевая минерализация в колчеданных проявлениях - новый тип для Южно-Печенгской структурной зоны, Кольский регион, - Месторождения стратегических металлов: закономерности размещения, источники вещества, условия и механизмы образования. Всероссийская конференция, посвящённая 85-летию ИГЕМ РАН.Москва, 25-27 ноября 2015 г. Материалы докладов. М.: ИГЕМ РАН, 2015. 336 с.
  • Catalonia
    • Tarragona
      • Conca de Barberà
        • Vimbodí
          • Poblet Monastery
C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595
C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595
C.. Canet et al. , The Canadian Mineralogist, 2003, V41, pp. 581-595
  • Wallis (Valais)
    • Binn Valley
      • Fäld (Imfeld; Im Feld; Feld)
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 123.
  • Alaska
    • Yukon-Koyukuk Borough
      • Innoko District
U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
  • California
    • Fresno Co.
      • Diablo Range
        • New Idria District
          • Archer Camp
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 152.
  • Nevada
    • Churchill Co.
      • Mineral Basin District
Am Min 47:1284-1291
    • Pershing Co.
      • Mineral Basin District
NBMG Spec. Pub. 31 Minerals of Nevada
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