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SYSTEMATIC of the MINERALS / SYSTEMATIK der MINERALE

           according to E.H. Nickel & M.C. Nichols (2007), H. Strunz & E.H. Nickel (2001)



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


4.A: Metal : Oxygen = 2 : 1 and 1 : 1


4.AA. Cation : Anion (M : O) = 2 : 1 (and 1.8 : 1)

4.AA.05. Ice group

Ice  /  Eis H2O hex., P63/mmc     G
Methanhydrate 46 H2O · 8 CH4 cub., Pm-3n

Methanhydrate is at time not described as a mineral. It is stable under higher pressures and/or low temperatures (23 atm and 0°C to 1 atm and ca. –80°C). Methanhydrate is a clathrate and isostructural with cubic melanophlogite (above ca. 40°C, melanophlogite is cubic, Pm-3n).



4.AA.10. Cuprite group

Cuprite Cu2O cub., Pn-3m FOTO



4.AA.15. Paramelaconite group

Paramelaconite Cu1+2Cu2+2O3 tetr., I41/amd






4.AB. Cation : Anion (M : O) = 1 : 1 (and up to 1 : 1.25), only with small and medium-sized cations

4.AB.05. Crednerite group

Crednerite Cu(Mn,Fe)O2 mon., C2/m ENTDECKUNG



4.AB.10. Tenorite group

Tenorite CuO mon., C2/c FOTO



4.AB.15. Delafossite group

Delafossite CuFeO2 trig., R-3m FOTO
Mcconnellite CuCrO2 trig., R-3m



4.AB.20. Zincite group

Bromellite BeO hex., P63mc .
Zincite ZnO hex., P63mc FOTO



4.AB.25. Periclase group

Periclase MgO cub., Fm-3m . FOTO
Wüstite FeO cub., Fm-3m .
Bunsenite NiO cub., Fm-3m . FOTO ENTDECKUNG
Manganosite MnO cub., Fm-3m . FOTO
Monteponite CdO cub., Fm-3m .
Lime  /  Calciumoxide CaO cub., Fm-3m FOTO



4.AB.30. Palladinite group

Palladinite PdO tetr., P42/mmc






4.AC. Cation : Anion (M : O) = 1 : 1 (and up to 1 : 1.25), with large cations (+/- small)

4.AC.05. Swedenborgite group

Swedenborgite NaBe4SbO7 tetr., P42/mmc



4.AC.10. Brownmillerite group

Brownmillerite Ca2Al2O5 orth., Ibm2
Srebrodolskite Ca2Fe2O5 orth., Ibm2 FOTO



4.AC.15. Montroydite group

Montroydite HgO orth., Pnma



4.AC.20. Lithargite group

Litharge  /  Lithargite PbO tetr., P4/nmm . FOTO
Romarchite SnO tetr., P4/nmm



4.AC.25. Massicot group

Massicot  /  Massicotite PbO orth., Pbcm FOTO





in bold: grandfathered, IMA accepted, renamed and redefined (with IMA approval) minerals,
in normal letters: minerals published without IMA approval, questionable minerals, polytypes

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
GROUP = a name used to designate a group of species
N = Mineral published without approval of the CNMNC
Q = Questionable mineral
H = Hypothetical mineral (synthetic, anthropogenic, etc.)
D = Discredited by the CNMNC
Poly = Polytype



© Thomas Witzke / Stollentroll (2007 - 2008)


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