based on E.H. Nickel & M.C. Nichols (2009), H. Strunz & E.H. Nickel (2001)

(Oxides, Hydroxides, V[5,6]-Vanadates, Arsenites, Antimonites, Bismutites, Sulfites, Selenites, Tellurites, Iodates)

4.C: Metal : Oxygen = 2 : 3, 3 : 5, and similar

4.CA. With small cations
No examples known

4.CB. With medium-sized cations
4.CB.05. Corundum-Ilmenite group
     05 a. Corundum series
Corundum  /  Korund Al2O3 trig., R-3c FOTO G
Karelianite V2O3 trig., R-3c A
Eskolaite Cr2O3 trig., R-3c G
Hematite  /  Hämatit Fe2O3 trig., R-3c FOTO A
Tistarit Ti2O3 trig., R-3c IMA 2008-016
     05 b. Ilmenite series
Akimotoite MgSiO3 trig., R-3 IMA 1997-044
Geikielite MgTiO3 trig., R-3 FOTO G
Pyrophanite MnTiO3 trig., R-3 FOTO G
Ilmenite FeTiO3 trig., R-3 G
Ecandrewsite ZnTiO3 trig., R-3 IMA 1978-082
Melanostibite Mn2+(Sb5+,Fe3+)O3 trig., R-3 A
Brizziite NaSbO3 trig., R-3 IMA 1993-044
Pauloabibite NaNbO3 trig., R-3 IMA 2012-090
     05 c. Wangdaodeite
Wangdaodeite FeTiO3 trig., R3c IMA 2016-007

4.CB.10. Bixbyite group
Bixbyite (Mn,Fe)2O3 cub., Ia-3 G
Kangite (Sc,Ti,Al,Zr,Mg,Ca,)2O3 cub., Ia-3 IMA 2011-092
Yttrialite-(Y) Y2O3 cub., Ia-3 IMA 2010-039
Avicennite Tl2O3 cub., Ia-3 G

4.CB.12. Panguite
Panguite (Ti,Al,Sc,Mg,Zr,Ca)1.8O3 orth., Pbca IMA 2010-057

4.CB.15. Deltalumite
Deltalumite δ-Al2O3 tetr., P-4m2 IMA 2016-027

4.CB.20. Luogufengite
Luogufengite ε-Fe2O3 orth., Pna21 IMA 2016-005

4.CB.25. Pseudobrookite group
Pseudobrookite Fe2TiO5 orth., Bbmm FOTO Rd
Armalcolite (Mg,Fe2+)Ti2O5 orth., Bbmm FOTO Rd

4.CB.30. Högbomite group (stacking of Spinel T2M4O8 and Nolanite TM4O7(OH) modules, Ti > Sn) [ Högbomite supergroup]
Magnesiohögbomite-2N2S (Al,Mg,Fe,Ti)22(O,OH)32 hex., P63mc Rn
Magnesiohögbomite-2N3S (Mg,Fe,Zn,Ti)4(Al,Fe)10O19(OH) hex. Rn
Magnesiohögbomite-2N4S (Mg8.43Fe1.57)Al22Ti2O46(OH)2 hex., P63mc IMA 2010-084
Magnesiohögbomite-6N6S (Mg,Al,Fe)3(Al,Ti)8O15(OH) trig. Rn
Ferrohögbomite-2N2S (Fe,Mg,Zn,Al)3(Al,Ti,Fe)8O15(OH) hex., P63mc IMA 2001-048
Zincohögbomite-2N2S (Zn,Al,Fe)3(Al,Fe,Ti)8O15(OH) hex., P63mc FOTO Rn
Zincohögbomite-2N6S (Zn,Al,Fe)7(Al,Fe,Ti,Mg)16O31(OH)2 hex., P63mc Rn

4.CB.31. Beltrandoite group (stacking of Spinel T2M4O8 and Nolanite TM4O7(OH) modules, Fe3+ > Ti,Sn) [ Högbomite supergroup]
Magnesiobeltrandoite-2N3S Mg8Al18Fe3+2O38(OH)2 trig., P-3m1 IMA 2016-073

4.CB.32. Nigerite group (stacking of Spinel T2M4O8 and Nolanite TM4O7(OH) modules, Sn > Ti) [ Högbomite supergroup]
Ferronigerite-2N1S (Al,Fe,Zn)2(Al,Sn)6O11(OH) trig., P-3m1 Rn
Ferronigerite-6N6S (Al,Fe,Zn)3(Al,Sn,Fe)8O15(OH) trig., R-3m FOTO Rn
Magnesionigerite-2N1S (Mg,Al,Zn)2(Al,Sn)6O11(OH) trig., P-3m1 IMA 1988-010, Rn
Magnesionigerite-6N6S (Mg,Al,Zn)3(Al,Sn,Fe)8O15(OH) trig. Rn

Magnesionigerite-2N1S, originally described as Pengzhizhongite-6R, renamed (2002).
Magnesionigerite-6N6S, originally described as Pengzhizhongite-24R, renamed (2002). Ferronigerite-2N1S, originally described as Nigerite, renamed (2002).
Ferronigerite-6N6S, originally described as Nigerite-24R, renamed (2002).

4.CB.33. Velesite group (stacking of Spinel T2M4O8 and Nolanite TM4O7(OH) modules, Fe3+ > Al) [ Högbomite supergroup]
Zincovelesite-6N6S Zn3(Fe3+,Mn,Al,Ti)8O15(OH) trig., P-3m1 IMA 2017-034

4.CB.34. Taaffeite group (stacking of Spinel T2M4O8 and modified Nolanite BeTM4O8 modules) [ Högbomite supergroup]
Magnesiotaaffeite-2N'2S BeMg3Al8O16 hex., P63mc Rn
Magnesiotaaffeite-6N'3S BeMg2Al6O12 trig., R-3m Rn
Ferrotaaffeite-2N'2S Be(Fe,Mg,Zn)3Al8O16 hex., P63mc IMA 2011-025
Ferrotaaffeite-6N'3S BeFe2Al6O12 trig., R-3m Rn

Magnesiotaaffeite-2N'2S, originally described as Taaffeite, renamed.
Magnesiotaaffeite-6N'3S, originally described as Musgravite, renamed.
Ferrotaaffeite-6N'3S, originally described as Pehrmanite, renamed.

4.CB.40. Byrudite group
Byrudite (Be,)2(V3+,Ti)3O6 orth., Pnma IMA 2013-045
Verbierite BeCr2TiO6 orth., Pnma IMA 2015-089

4.CB.45. Berdesinskiite group
Berdesinskiite V2TiO5 mon. IMA 1980-036
Oxyvanite V3O5 mon., C2/c IMA 2008-044

4.CB.50. Schreyerite group
Machiite Al2Ti3O9 mon. IMA 2016-067
Schreyerite V3+2Ti3O9 mon. IMA 1976-004
Olkhonskite Cr2Ti3O9 mon. IMA 1993-035

4.CB.55. Kyzylkumite
Kyzylkumite V3+2Ti3O9 mon. FOTO IMA 1980-081

4.CB.60. Nolanite group
Nolanite (V,Fe,Ti)10O14(OH)2 hex., P63mc G
Rinmanite Mg2Fe4Zn2Sb2O14(OH)2 hex., P63mc IMA 2000-036

4.CB.65. Kamiokite group
Majindeite Mg2Mo4+3O8 hex., P63mc IMA 2012-079
Iseite Mn2+2Mo4+3O8 hex., P63mc IMA 2012-020
Kamiokite Fe2+2Mo4+3O8 hex., P63mc FOTO IMA 1975-003

4.CB.70. Claudetite group
Claudetite As2O3 mon., P21/n FOTO A
Stibioclaudetite AsSbO3 mon., P21/n IMA 2007-028

4.CB.75. Arsenolite group
Arsenolite As2O3 cub., Fd-3m FOTO G
Sénarmontite Sb2O3 cub., Fd-3m FOTO G

4.CB.80. Valentinite
Valentinite Sb2O3 orth., Pccn A

4.CB.85. Bismite
Bismite Bi2O3 mon., P21/c G

4.CB.90. Sphaerobismoite
Sphaerobismoite Bi2O3 tetr. IMA 1993-009

4.CB.95. Sillénite
Sillénite Bi12SiO20 cub., I23 FOTO G

4.CC. With large and medium-sized cations
4.CC.05. Chrombismite
Chrombismite Bi16CrO27 tetr. IMA 1995-044

4.CC.10. Freudenbergite
Freudenbergite Na2(Ti,Fe)8O16 mon., C2/m A

4.CC.15. Grossite
Grossite CaAl4O7 mon., C2/c IMA 1993-052
Grandiferrite CaFe4O7 mon. FOTO -

"Grandiferrite" was described from a burning coal mine dump from Kopeisk, Ural, Russia, without IMA approval.

4.CC.20. Mayenite group
Fluormayenite Ca12Al14O324F2 cub., I-43d IMA 2013-019
Chlormayenite Ca12Al14O324Cl2 cub., I-43d IMA 2013-019
Fluorkyuygenite Ca12Al14O32(H2O)4F2 cub., I-43d IMA 2013-043
Chlorkyuygenite Ca12Al14O32(H2O)4Cl2 cub., I-43d IMA 2012-046, Rn

Chlormayenite, redefined and renamed, originally described as mayenite.
Chlorkyuygenite, renamed, originally describes as kyuygenite.

4.CC.25. Perovskite group [Perovskite supergroup, Single perovskites ABX3]
     25 a. Bridgmanite subgroup
Bridgmanite MgSiO3 orth., Pbnm IMA 2014-017
     25 b. Perovskite subgroup
Perovskite CaTiO3 orth., Pbnm G
Tausonite SrTiO3 cub., Pm-3m FOTO IMA 1982-077
Barioperovskite BaTiO3 orth., Amm2 IMA 2006-040
Macedonite PbTiO3 tetr., P4mm IMA 1970-010
Megawite CaSnO3 orth., Pnma IMA 2009-090
Lakargiite CaZrO3 orth., Pnma IMA 2007-014
Lueshite NaNbO3 orth., Pbnm FOTO A
Isolueshite NaNbO3 cub., Pm-3m IMA 1995-024
Loparite (Na,REE,Ca,Sr,Th)(Ti,Nb)O3 orth., Pbnm FOTO A
     25 Appendix. Natroniobite
Natroniobite NaNbO3 mon. Q

Natroniobite is a very questionable mineral and is not discussed in the perovskite supergroup nomenclature of Mitchell et al. (2017) Min. Mag. 81, 411-461. The structure is unknown.

4.CC.30. Latrappite group [Perovskite supergroup, Double perovskites A2BB'X6]
Latrappite Ca2NbFeO6 mon., P21/n FOTO IMA 1964-019
Vapnikite Ca2CaUO6 mon., P21/n IMA 2013-082

4.CC.35. Crichtonite group
Mathiasite (K,Ba)(Zr,Fe)(Mg,Fe)2(Ti,Cr,Fe)18O38 trig., R-3 IMA 1982-087
Loveringite (Ca,Ce)(Zr,Fe)(Mg,Fe)2(Ti,Fe)18O38 trig., R-3 IMA 1977-023
Crichtonite Sr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38 trig., R-3 FOTO A
Senaite Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38 trig., R-3 FOTO G
Dessauite-(Y) (Sr,Pb)(Y,U,Mn)Fe2(Ti,Fe,Cr,V)18(O,OH)38 trig., R-3 IMA 1994-057
Gramaccioliite-(Y) (Pb,Sr)(Y,Mn)Fe2(Ti,Fe)18O38 trig., R-3 FOTO IMA 2001-034
Davidite-(La) La(Y,U)Fe2(Ti,Fe)18(O,OH,F)38 trig., R-3 FOTO A
Davidite-(Ce) Ce(Y,U)Fe2(Ti,Fe)18(O,OH,F)38 trig., R-3 FOTO A
Lindsleyite (Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr)18O38 trig., R-3 IMA 1982-086
Mianningite (,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2(Ti,Fe3+)18O38 trig., R-3 IMA 2014-072
Mapiquiroite (Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38 trig., R-3 IMA 2013-010
Cleusonite Pb(U4+,U6+)Fe2(Ti,Fe)18(O,OH)38 trig., R-3 FOTO IMA 1998-070
Landauite (Na,Pb)(Mn,Y)(Zn,Fe)2(Ti,Fe,Nb)18(O,OH,F)38 trig., R-3 IMA 1965-033
Almeidaite Pb(Mn,Y)Zn2(Ti,Fe3+)18O37(OH,O) trig., R-3 IMA 2013-020
Paseroite PbMn2+(Fe3+,)2(V5+,Ti,)18O38 trig., R-3 IMA 2011-069

4.CC.40. Magnetoplumbite group
Diaoyudaoite NaAl11O17 hex., P63/mmc IMA 1985-005
Hibonite (Ca,Ce)(Al,Ti,Mg)12O19 hex., P63/mmc G
Hibonite-(Fe) (Fe,Mg)Al12O19 hex., P63/mmc IMA 2009-027
Barioferrit BaFe12O19 hex., P63/mmc IMA 2009-030
Batiferrite BaTi2Fe10O19 hex., P63/mmc FOTO IMA 1997-038
Magnetoplumbite PbFe12O19 hex., P63/mmc G
Plumboferrite Pb2(Fe,Mn,Mg)11O19 hex., P63/mmc G
Hawthorneite BaMgTi3Cr4Fe4O19 hex., P63/mmc IMA 1988-019
Haggertyite (Ba,K)Fe6Ti5MgO19 hex., P63/mmc IMA 1996-054
Nežilovite PbZn2(Mn,Ti)2Fe8O19 hex., P63/mmc IMA 1994-020
Lindqvistite Pb2(Mn,Mg)Fe16O27 hex., P63/mmc IMA 1991-038
Yimengite K(Cr,Ti,Fe,Mg)12O19 hex., P63/mmc IMA 1982-046

The existence of diaoyudaoite in nature needs to be confirmed, it is probably an industrial waste product.

4.CC.45. Jeppeite
Jeppeite (K,Ba)2(Ti,Fe)6O13 mon., C2/m FOTO IMA 1980-080

4.CC.50. Zenzénite
Zenzénite Pb3(Fe,Mn)4Mn3O15 hex., P63/mcm IMA 1990-031

4.CC.55. Yafsoanite [Garnet supergroup]
Yafsoanite Ca3Te2Zn3O12 cub., Ia-3d IMA 1981-022

4.CC.60. Bitikleite group [Garnet supergroup]
Bitikleit Ca3Sb5+Sn4+(AlO4)3 cub., Ia-3d IMA 2009-052, Rn
Dzhuluite Ca3Sb5+Sn4+(Fe3+O4)3 cub., Ia-3d IMA 2010-064, Rn
Usturite Ca3Sb5+Zr(Fe3+O4)3 cub., Ia-3d IMA 2009-053, Rn
Elbrusite Ca3U6+0.5Zr1.5(Fe3+O4)3 cub., Ia-3d IMA 2009-051, Rn

Bitikleite, renamed, originally described as Bitikleit-(SnAl).
Dzhuluite, renamed, originally described as Bitikleit-(SnFe).
Usturite, renamed, originally described as Bitikleit-(ZrFe).
Elbrusite, renamed, originally described as Elbrusite-(Zr).

4.CC.65. Warkite group [Sapphirine supergroup]
Addibischoffite Ca2Al6Al6O20 tric., P-1 IMA 2015-006
Warkite Ca2Sc6Al6O20 tric., P-1 IMA 2013-129

4.CC.70. Allendeite
Allendeite Sc4Zr3O12 trig., R-3 IMA 2007-027


G = Grandfathered minerals: original description preceded the establishment of the CNMNC in 1959, and generally regarded as a valid species
A or IMA No. = Minerals approved by the CNMNC
Rd = Redefinition of the mineral approved by the CNMNC
Rn = Renamed with approval by the CNMNC
Q = Questionable mineral

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