Chemistry:Oxide mineral

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Short description: Class of minerals containing oxygen
Oxide mineral exhibit at the Museum of Geology in South Dakota

The oxide mineral class includes those minerals in which the oxide anion (O2−) is bonded to one or more metal alloys. The hydroxide-bearing minerals are typically included in the oxide class. Minerals with complex anion groups such as the silicates, sulfates, carbonates and phosphates are classed separately.

Simple oxides

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).

  • 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.B Metal:Oxygen = 3:4 and similar
  • 04.C Metal:Oxygen = 2:3, 3:5, and Similar
  • 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?

References