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Simple oxides

• XO form
  • Periclase group
    • Periclase MgO
    • Manganosite MnO
  • Zincite group
    • Zincite ZnO
    • Bromellite BeO
    • Tenorite CuO
    • Litharge PbO

• X2O form
  • Cuprite Cu2O
  • Ice H2O

• X2O3 form
  • Hematite group
    • Corundum Al2O3
    • Hematite Fe2O3
    • Ilmenite FeTiO3

• XO2 form
  • Rutile group
    • Rutile TiO2
    • Pyrolusite MnO2
    • Cassiterite SnO2
  • Baddeleyite ZrO2
  • Uraninite UO2
  • Thorianite ThO2

• XY2O4 form
  • Spinel group
    • Spinel MgAl2O4
    • Gahnite ZnAl2O4
    • Magnetite Fe3O4 (Fe2+Fe3+2O4)
    • Franklinite (Zn,Fe,Mn)(Fe,Mn)2O4
    • Chromite FeCr2O4
  • Chrysoberyl BeAl2O4
  • Columbite (Fe,Mn)(Nb,Ta)2O6

• Hydroxide subgroup:
  • Brucite Mg(OH)2
  • Manganite MnO(OH)
  • Romanèchite BaMn2+Mn4+8O16(OH)4
  • Goethite group:
    • Diaspore αAlO(OH)
    • Goethite αFeO(OH)

Nickel–Strunz class 4: oxides

IMA-CNMNC proposes a new hierarchical scheme (Mills et al., 2009). This list uses it to modify the Nickel–Strunz classification (mindat.org, 10 ed, pending publication).[original research?]

• Abbreviations:
  • "*": discredited (IMA/CNMNC status)
  • "?": questionable/doubtful (IMA/CNMNC status)
  • "REE": Rare-earth element (Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu)
  • "PGE": Platinum-group element (Ru, Rh, Pd, Os, Ir, Pt)
  • 03.C Aluminofluorides, 06 Borates, 08 Vanadates (04.H V[5,6] Vanadates), 09 Silicates:
    • Neso: insular (from Greek: νησος, romanized: nēsos, lit. 'island')
    • Soro: grouping (from Greek: σωροῦ, romanized: sōros; heap, mound (especially of corn))
    • Cyclo: ring
    • Ino: chain (from Greek: ις [genitive: ινος, inos], fibre)
    • Phyllo: sheet (from Greek: φύλλον, romanized: phyllon, lit. 'leaf')
    • Tekto: three-dimensional framework
• Nickel–Strunz code scheme: NN.XY.##x
  • NN: Nickel–Strunz mineral class number
  • X: Nickel–Strunz mineral division letter
  • Y: Nickel–Strunz mineral family letter
  • ##x: Nickel–Strunz mineral/group number, x add-on letter

Class: oxides

• 04.A Metal:Oxygen = 2.1 and 1:1
  • 04.AA Cation:Anion (M:O) = 2:1 (and 1.8:1): 05 Ice, 10 Cuprite, 15 Paramelaconite
  • 04.AB M:O = 1:1 (and up to 1:1.25); with small to medium-sized cations only: 05 Crednerite, 10 Tenorite; 15 Delafossite, 15 Mcconnellite; 20 Bromellite, 20 Zincite; 25 Lime, 25 Bunsenite, 25 Monteponite, 25 Manganosite, 25 Periclase, 25 Wüstite
  • 04.AC M:O = 1:1 (and up to 1:1.25); with large cations (± smaller ones): 05 Swedenborgite; 10 Brownmillerite, 10 Srebrodolskite; 15 Montroydite, 20 Litharge, 20 Romarchite, 25 Massicot
• 04.B Metal:Oxygen = 3:4 and similar
  • 04.BA With small and medium-sized cations: 05 Chrysoberyl, 10 Manganostibite
  • 04.BB With only medium-sized cations: 05 Filipstadite, 05 Donathite?, 05 Gahnite, 05 Galaxite, 05 Hercynite, 05 Spinel, 05 Cochromite, 05 Chromite, 05 Magnesiochromite, 05 Manganochromite, 05 Nichromite, 05 Zincochromite, 05 Magnetite, 05 Cuprospinel, 05 Franklinite, 05 Jacobsite, 05 Magnesioferrite, 05 Trevorite, 05 Brunogeierite, 05 Coulsonite, 05 Magnesiocoulsonite, 05 Qandilite, 05 Ulvospinel, 05 Vuorelainenite; 10 Hydrohetaerolite, 10 Hausmannite, 10 Iwakiite, 10 Hetaerolite; 15 Maghemite, 20 Tegengrenite, 25 Xieite
  • 04.BC With medium-sized and large cations: 05 Marokite, 10 Dmitryivanovite
  • 04.BD With only large cations: 05 Minium
• 04.C Metal:Oxygen = 2:3, 3:5, and Similar
  • 04.CB With medium-sized cations: 05 Tistarite, 05 Auroantimonate*, 05 Brizziite-VII, 05 Brizziite-III, 05 Corundum, 05 Eskolaite, 05 Hematite, 05 Karelianite, 05 Geikielite, 05 Ecandrewsite, 05 Ilmenite, 05 Pyrophanite, 05 Melanostibite, 05 Romanite*; 10 Bixbyite, 10 Avicennite; 15 Armalcolite, 15 Mongshanite*, 15 Pseudobrookite; 20 Magnesiohogbomite-6N6S, 20 Magnesiohogbomite-2N3S, 20 Magnesiohogbomite-2N2S, 20 Zincohogbomite-2N2S, 20 Ferrohogbomite-2N2S; 25 Pseudorutile, 25 Ilmenorutile; 30 Oxyvanite, 30 Berdesinskiite; 35 Olkhonskite, 35 Schreyerite; 40 Kamiokite, 40 Nolanite, 40 Rinmanite; 45 Stibioclaudetite, 45 Claudetite; 50 Arsenolite, 50 Senarmontite; 55 Valentinite, 60 Bismite, 65 Sphaerobismoite, 70 Sillenite, 75 Kyzylkumite
  • 04.CC With large and medium-sized cations: 05 Chrombismite, 10 Freudenbergite, 15 Grossite, 20 Mayenite, 25 Yafsoanite; 30 Barioperovskite, 30 Lakargiite, 30 Natroniobite, 30 Latrappite, 30 Lueshite, 30 Perovskite; 35 Macedonite, 35 Isolueshite, 35 Loparite-(Ce), 35 Tausonite; 40 Crichtonite, 40 Dessauite, 40 Davidite-(Ce), 40 Davidite-(La), 40 Mathiasite, 40 Lindsleyite, 40 Landauite, 40 Loveringite, 40 Loveringite, 40 Cleusonite, 40 Gramaccioliite-(Y); 45 Hawthorneite, 45 Magnetoplumbite, 45 Haggertyite, 45 Batiferrite, 45 Hibonite, 45 Nezilovite, 45 Yimengite, 45 Diaoyudaoite, 45 Lindqvistite, 45 Plumboferrite; 50 Jeppeite, 55 Zenzenite, 60 Mengxianminite*
• 04.D Metal:Oxygen = 1:2 and similar
  • 04.DA With small cations
    • (moved to -09- Subclass: tektosilicates)
  • 04.DB With medium-sized cations; chains of edge-sharing octahedra: 05 Tripuhyite, 05 Tugarinovite, 05 Varlamoffite*, 05 Argutite, 05 Cassiterite, 05 Rutile, 05 Pyrolusite, 05 Plattnerite, 05 Squawcreekite?; 10 Bystromite, 10 Ordonezite, 10 Tapiolite-(Fe), 10 Tapiolite-(Mn), 10 Tapiolite*, 15a Paramontroseite, 15a Ramsdellite, 15b Akhtenskite, 15c Nsutite; 20 Scrutinyite; 25 Ixiolite, 25 Ishikawaite, 25 Srilankite, 25 Samarskite-(Y), 25 Samarskite-(Yb), 25 Yttrocolumbite-(Y); 30 Heftetjernite, 30 Wolframoixiolite*, 30 Krasnoselskite*, 30 Ferberite, 30 Hubnerite, 30 Sanmartinite, 30 Wolframite*; 35 Tantalite-(Mg), 35 Tantalite-(Fe), 35 Tantalite-(Mn), 35 Columbite-(Mg), 35 Columbite-(Fe), 35 Columbite-(Mn), 35 Qitianlingite; 40 Ferrowodginite, 40 Lithiotantite, 40 Lithiowodginite, 40 Tantalowodginite*, 40 Titanowodginite, 40 Wodginite, 40 Ferrotitanowodginite; 45 Tivanite, 50 Carmichaelite, 55 Alumotantite, 60 Biehlite
  • 04.DC With medium-sized cations; sheets of edge-sharing octahedra: 05 Bahianite, 10 Simpsonite
  • 04.DD With medium-sized cations; frameworks of edge-sharing octahedra: 05 Anatase, 10 Brookite
  • 04.DE With medium-sized cations; with various polyhedra: 05 Downeyite, 10 Koragoite; 15 Koechlinite, 15 Russellite, 15 Tungstibite; 20 Tellurite, 25 Paratellurite; 30 Cervantite, 30 Bismutotantalite, 30 Bismutocolumbite, 30 Clinocervantite, 30 Stibiocolumbite, 30 Stibiotantalite; 35 IMA2007-058, 35 Baddeleyite
  • 04.DF With large (± medium-sized) cations; dimers and trimers of edge-sharing octahedra: 05 Nioboaeschynite-(Y), 05 Aeschynite-(Ce), 05 Aeschynite-(Nd), 05 Aeschynite-(Y), 05 Nioboaeschynite-(Ce), 05 Nioboaeschynite-(Nd), 05 Tantalaeschynite-(Y), 05 Rynersonite, 05 Vigezzite, 10 Changbaiite, 15 Murataite
  • 04.DG With large (± medium-sized) cations; chains of edge-sharing octahedra: 05 Euxenite-(Y), 05 Loranskite-(Y), 05 Polycrase-(Y), 05 Uranopolycrase, 05 Fersmite, 05 Kobeite-(Y), 05 Tanteuxenite-(Y), 05 Yttrocrasite-(Y); 10 Fergusonite-beta-(Nd), 10 Fergusonite-beta-(Y), 10 Fergusonite-beta-(Ce), 10 Yttrotantalite-(Y); 15 Foordite, 15 Thoreaulite; 20 Raspite
  • 04.DH With large (± medium-sized) cations; sheets of edge-sharing octahedra:
    • IMA/CNMNC revised the Pyrochlore supergroup 2010 (04.DH.15 and 04.DH.20)
    • 05 Brannerite, 05 Orthobrannerite, 05 Thorutite; 10 Kassite, 10 Lucasite-(Ce)
    • Pyrochlore group: Fluorcalciopyrochlore, Fluorkenopyrochlore, Fluornatropyrochlore, Fluorstrontiopyrochlore, Hydropyrochlore, Hydroxycalciopyrochlore, Kenoplumbopyrochlore, Oxycalciopyrochlore, Oxynatropyrochlore, Oxyplumbopyrochlore, Oxyyttropyrochlore-(Y)
    • Microlite group: Fluorcalciomicrolite, Fluornatromicrolite, Hydrokenomicrolite, Hydromicrolite, Hydroxykenomicrolite, Kenoplumbomicrolite, Oxycalciomicrolite, Oxystannomicrolite, Oxystibiomicrolite
    • Romeite group: Cuproromeite, Fluorcalcioromeite, Fluornatroromeite, Hydroxycalcioromeite, Oxycalcioromeite, Oxyplumboromeite, Stibiconite
    • Betafite group: Calciobetafite, Oxyuranobetafite
    • Elsmoreite group: Hydrokenoelsmoreite
    • 25 Rosiaite; 30 Zirconolite-3O, 30 Zirconolite-3T, 30 Zirconolite-2M, 30 Zirconolite; 35 Liandratite, 35 Petscheckite; 40 Ingersonite, 45 Pittongite
    • Discredited minerals 04.DH.15: Bariomicrolite (of Hogarth 1977), Bariopyrochlore (of Hogarth 1977), Betafite (of Hogarth 1977), Bismutomicrolite (of Hogarth 1977), Ceriopyrochlore (of Hogarth 1977), Jixianite, Natrobistantite, Plumbomicrolite (of Hogarth 1977), Plumbobetafite (of Hogarth 1977), Stannomicrolite (of Hogarth 1977), Stibiobetafite (of Černý et al.), Yttrobetafite (of Hogarth 1977), Yttropyrochlore (of Hogarth 1977), Bismutopyrochlore (of Chukanov et al.) and Bismutostibiconite 04.DH.20
  • 04.DJ With large (± medium-sized) cations; polyhedral frameworks: 05 Calciotantite, 05 Irtyshite, 05 Natrotantite
  • 04.DK With large (± medium-sized) cations; tunnel structures: 05 Ankangite, 05 Coronadite, 05 Hollandite, 05 Manjiroite, 05 Mannardite, 05 Redledgeite, 05 Priderite, 05 Henrymeyerite, 05 Akaganeite, 10 Cryptomelane, 10 Romanechite, 10 Strontiomelane, 10 Todorokite
  • 04.DL With large (± medium-sized) cations; fluorite-type structures: 05 Cerianite-(Ce), 05 Zirkelite, 05 Thorianite, 05 Uraninite; 10 Calzirtite, 10 Hiarneite, 10 Tazheranite
  • 04.DM With large (± medium-sized) cations; unclassified: 05 Sosedkoite, 05 Rankamaite; 15 Cesplumtantite, 20 Eyselite, 25 Kuranakhite
• 04.E Metal:Oxygen = < 1:2
  • 04.E: IMA2008-040
  • 04.EA Oxides with metal : oxygen < 1:2 (M2O5, MO3): 05 Tantite, 10 Krasnogorite*, 10 Molybdite
• 04.X Unclassified Strunz Oxides
  • 04.XX Unknown: 00 Allendeite, 00 Ashanite?, 00 Hongquiite*, 00 Psilomelane?, 00 Uhligite?, 00 Clinobirnessite*, 00 Kleberite*, 00 Chubutite*, 00 Struverite?, 00 IMA2000-016, 00 IMA2000-026

Class: hydroxides

• 04.F Hydroxides (without V or U)
  • 04.FA Hydroxides with OH, without H2O; corner-sharing tetrahedra: 05a Behoite, 05b Clinobehoite; 10 Sweetite, 10 Wulfingite, 10 Ashoverite
  • 04.FB Hydroxides with OH, without H2O; insular octahedra: 05 Shakhovite; 10 Cualstibite, 10 Zincalstibite
  • 04.FC Hydroxides with OH, without H2O; corner-sharing octahedra: 05 Dzhalindite, 05 Sohngeite, 05 Bernalite; 10 Burtite, 10 Mushistonite, 10 Natanite, 10 Vismirnovite, 10 Schoenfliesite, 10 Wickmanite; 15 Jeanbandyite, 15 Mopungite, 15 Stottite; 15 Tetrawickmanite; 20 Ferronigerite-6N6S, 20 Ferronigerite-2N1S, 20 Magnesionigerite-6N6S, 20 Magnesionigerite-2N1S; 25 Magnesiotaaffeite-6N3S, 25 Magnesiotaaffeite-2N2S, 25 Ferrotaaffeite-6N3S
  • 04.FD Hydroxides with OH, without H2O; chains of edge-sharing octahedra: 05 Spertiniite; 10 Bracewellite, 10 Diaspore, 10 Guyanaite, 10 Groutite, 10 Goethite, 10 Montroseite, 10 Tsumgallite; 15 Manganitev; 20 Cerotungstite-(Ce), 20 Yttrotungstite-(Y), 20 Yttrotungstite-(Ce); 25 Frankhawthorneite; 30 Khinite, 30 Parakhinite
  • 04.FE Hydroxides with OH, without H2O; sheets of edge-sharing octahedra: 05 Amakinite, 05 Brucite, 05 Portlandite, 05 Pyrochroite, 05 Theophrastite, 05 Fougerite; 10 Bayerite, 10 Doyleite, 10 Gibbsite, 10 Nordstrandite; 15 Boehmite, 15 Lepidocrocite; 20 Grimaldiite, 20 Heterogenite-2H, 20 Heterogenite-3R; 25 Feitknechtite, 25 Lithiophorite; 30 Quenselite, 35 Ferrihydrite; 40 Feroxyhyte, 40 Vernadite; 45 Quetzalcoatlite
  • 04.FF Hydroxides with OH, without H2O; various polyhedra: 05 Hydroromarchite
  • 04.FG Hydroxides with OH, without H2O; unclassified: 05 Janggunite, 10 Cesarolite, 15 Kimrobinsonite
  • 04.FH Hydroxides with H2O ± (OH); insular octahedra: 05 Bottinoite, 05 Brandholzite
  • 04.FJ Hydroxides with H2O ± (OH); corner-sharing octahedra: 05 Sidwillite, 05 Meymacite; 10 Tungstite; 15 Ilsemannite, 15 Hydrotungstite; 20 Parabariomicrolite
  • 04.FK Hydroxides with H2O ± (OH); chains of edge-sharing octahedra: 05 Bamfordite
  • 04.FL Hydroxides with H2O ± (OH); sheets of edge-sharing octahedra: 05 Meixnerite, 05 Jamborite, 05 Iowaite, 05 Woodallite, 05 Akdalaite, 05 Muskoxite; 10 Hydrocalumite, 15 Kuzelite; 20 Aurorite, 20 Chalcophanite, 20 Ernienickelite, 20 Jianshuiite; 25 Woodruffite, 30 Asbolane; 40 Takanelite, 40 Rancieite; 45 Birnessite, 55 Cianciulliite, 60 Jensenite, 65 Leisingite, 75 Cafetite, 80 Mourite, 85 Deloryite
  • 04.FM Hydroxides with H2O ± (OH); Unclassified: 15 Franconite, 15 Hochelagaite, 15 Ternovite; 25 Belyankinite, 25 Gerasimovskite, 25 Manganbelyankinite; 30 Silhydrite, 35 Cuzticite, 40 Cyanophyllite
  • 04.FN: 05 Menezesite
• 04.G Uranyl Hydroxides
  • 04.GA Without additional cations: IMA2008-022; 05 Metaschoepite, 05 Paraschoepite, 05 Schoepite; 10 Ianthinite; 15 Metastudtite, 15 Studtite
  • 04.GB With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra: 05 Compreignacite, 05 Agrinierite, 05 Rameauite; 10 Billietite, 10 Becquerelite, 10 Protasite; 15 Richetite; 20 Calciouranoite, 20 Bauranoite, 20 Metacalciouranoite; 25 Fourmarierite, 30 Wolsendorfite, 35 Masuyite; 40 Metavandendriesscheite, 40 Vandendriesscheite; 45 Vandenbrandeite, 50 Sayrite, 55 Curite, 60 Iriginite, 65 Uranosphaerite, 70 Holfertite
  • 04.GC With additional cations; with UO2(O,OH)6 hexagonal polyhedra: 05 Clarkeite, 10 Umohoite, 15 Spriggite
• 04.H V[5,6] Vanadates
  • (moved to -08- Class: vanadates)
• 04.I Ice group
• 04.X Unclassified Strunz Oxides (Hydroxides)
  • 04.XX Unknown: 00 Ungursaite*, 00 Scheteligite?

• Palache, Charles, Harry Berman and Clifford Frondel, 1944, The System of Mineralogy, Wiley, 7th ed. Vol. 1, p. 490 ff.
• Klein, Cornelis and Cornelius S. Hurlbut, Jr., 1985, Manual of Mineralogy, Wiley, 20th ed., pp. 295–318
• Webmineral Dana Oxides
• Stuart J. Mills; Frédéric Hatert; Ernest H. Nickel & Giovanni Ferraris (2009). "The standardisation of mineral group hierarchies: application to recent nomenclature proposals" (PDF). Eur. J. Mineral. 21 (5): 1073–1080. Bibcode:2009EJMin..21.1073M. doi:10.1127/0935-1221/2009/0021-1994. Archived from the original (PDF) on 2011-02-17. Retrieved 2011-01-27.
• Nickel, Ernest H.; Nichols, Monte C. (March 2009). "IMA-CNMNC List of Mineral Names" (PDF). IMA-CNMNC. Archived from the original (PDF) on 2012-03-26. Retrieved 2011-01-27.
• Ferraiolo, Jim. "Nickel–Strunz (Version 10) Classification System". webmineral.com.