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MINERAL CLASSIFICATION / SYSTEMATIK der MINERALE            according to E.H. Nickel & M.C. Nichols (2009), H. Strunz & E.H. Nickel (2001) 1. ELEMENTS (Metals and intermetallic alloys, Metalloids and Nonmetals, Carbides, Silicides, Nitrides and Phosphides) 1.A: Metals and intermetallic alloys 1.AA. Copper-Cupalite family                            1.AA.05. Copper group   Copper  /  Kupfer Cu cub., Fm-3m . FOTO           G Silver  /  Silber   (Silver-3C) Ag cub., Fm-3m . FOTO G     Silver-2H Ag hex., P63/mmc Poly     Silver-4H Ag hex., P63/mmc Poly Gold Au cub., Fm-3m . FOTO G Aluminium Al cub., Fm-3m . FOTO IMA 1980-085a Nickel Ni cub., Fm-3m . FOTO IMA 1966-039 Lead  /  Blei Pb cub., Fm-3m . FOTO G The common silver polytype is silver-3C. The rare Silver-2H is isostructural with Zn, Os, Allargentum (Ag,Sb), Hexaferrum (Fe,Ru,Os,Ir), and Rutheniridosmine (Ir,Os,Ru).   1.AA.10. Auricupride group        10 a. Auricupride Series Auricupride Cu3Au cub., Pm-3m G Cuproauride CuAu3 cub., Pm-3m   Q        10 b. Tetra-auricupride Series Tetra-auricupride CuAu tetr. . FOTO IMA 1982-005   1.AA.15. Khatyrkite-Anyuiite group   Khatyrkite CuAl2 tetr., I4/mcm IMA 1983-085 Anyuiite AuPb2 tetr., I4/mcm IMA 1987-053 Novodneprite AuPb3 tetr., I42m IMA 2002-032a   1.AA.20. Cupalite group   Cupalite CuAl orth. IMA 1983-084   1.AA.25. Hunchunite group   Hunchunite Au2Pb cub., Fd-3m FOTO IMA 1991-033   1.AA.30. Icosahedrite group *   Icosahedrite * Al63Cu24Fe13 icosahedral, Fm-3-5 IMA 2010-042 Icosahedrite is the first known natural quasicrystal. The symmetry can't be described with one of the seven common crystal systems. The diffraction pattern is in accordance with an incommensurate lattice with five-, three- and two-fold symmetry.   1.AB. Zinc-Brass family   1.AB.05. Zinc group   Zinc  /  Zink Zn hex., P63/mmc FOTO G Cadmium Cd hex., P63/mmc   FOTO IMA 1980-086 Titanium Ti hex., P63/mmc IMA 2010-044 Rhenium Re hex., P63/mmc D   1.AB.10. Brass group   Brass  /  Messing (Cu,Zn) cub., Fm-3m . FOTO N Tongxinite Cu2Zn cub. N Zhanghengite CuZn cub., Im-3m . IMA 1985-049 Danbaite CuZn2 cub. IMA 1981-041 Brass was described without IMA approval, and is identical with alpha-brass in the system Cu-Zn. Zn can reach up to 38.95 wt.-%, Cu and Zn are disordered. Formally, (alpha-) brass is a zincian variety of copper. Tongxinite, described without IMA approval, has a composition within the field of alpha-brass, but the given cell parameters differ from this compound. The composition of "Zinccopperit", alleged Cu7Zn4, described very incompletely and without IMA approval, plots in the compositional field of alpha-brass. From the published data there are no indication for a separate mineral. Zhanghengite corresponds to beta-brass in the Cu-Zn system. In the pure system, beta-brass is stable above 468ºC. It is isotypic with alpha-iron, Cu and Zn are disordered. Perhaps the beta-brass structure is stabilized by other metals in zhanghengite. Beta'-brass, Pm3m, CsCl structure, is stable below 468ºC and has an ordered distribution of Cu and Zn. Danbaite falls within the compositional field of gamma-brass (cub., I-43m, a = 8.878 Å), but has different cell parameters.   1.AC. Indium-Tin family   1.AC.05. Indium group   Indium In tetr., I4/mmm . FOTO A   1.AC.10. Tin group   Tin  /  Zinn Sn tetr., I41/amd   FOTO G   1.AC.15. Bronce group   Sorosite Cu1+x(Sn,Sb)     x < 0.2 hex., P63/mmc IMA 1994-047 Yuanjiangite AuSn hex., P63/mmc IMA 1993-028 Sorosite and yuanjiangite are isostructural with nickeline. Eta-bronce, Cu1.2Sn, hex., P63/mmc, is identical with sorosite.   1.AD. Mercury-Amalgam family   1.AD.05. Mercury   Mercury  /  Quecksilber Hg liquid / trig., R-3m   FOTO G Mercury is solid below -38.85ºC.   1.AD.10. Copperamalgam group   Kolymite Cu7Hg6 cub. IMA 1979-046 Belendorffite Cu7Hg6 trig., R-3m FOTO IMA 1989-024   1.AD.15. Silveramalgam group   Moschellandsbergite Ag2Hg3 cub., I23   FOTO G Schachnerite Ag1.1Hg0.9 hex., P63/mmc IMA 1971-055 Paraschachnerite Ag1.2Hg0.8 orth. IMA 1971-056 Luanheite Ag3Hg hex. IMA 1983-083 Eugenite Ag11Hg2 cub., I-43m IMA 1981-037   1.AD.20. Goldamalgam group   Weishanite (Au,Ag)1.2Hg0.8 hex., P63/mmc IMA 1982-076 Goldamalgam (Au,Ag)Hg cub., Im-3m N   1.AD.25. Palladiumamalgam group   Potarite PdHg tetr., P4/mmm FOTO G   1.AD.30. Leadamalgam group   Leadamalgam  /  Bleiamalgam Pb0.7Hg0.3 tetr., I4/mmm FOTO IMA 1981-042   1.AE. Iron-Chromium family   1.AE.05. Iron-Chromium group   Iron  /  Eisen Fe cub., Im-3m FOTO G Chromium  /  Chrom Cr cub., Im-3m FOTO IMA 1980-094 Tungsten  /  Wolfram W cub., Im-3m FOTO IMA 2011-004 Molybdenum  /  Molybdän Mo .  N Tantalum Ta cub., Im-3m   D "Kamacite" = Nickel-bearing iron, discredited in 2006.   1.AE.10. Taenite group   Taenite (Fe,Ni) cub., Fm-3m .  FOTO G     Taenite-1M FeNi mon., Pm .  Poly Tetrataenite FeNi tetr., P4/mmm .  FOTO IMA 1979-076 Antitaenite (Fe,Ni)   N   1.AE.15. Chromferide group   Chromferide Fe3Cr1-X cub., Pm-3m FOTO IMA 1984-021 Ferchromide Cr3Fe1-X cub., Pm-3m IMA 1984-022 Wairauite CoFe cub., Pm-3m IMA 1964-015   1.AE.20. Awaruite group   Awaruite FeNi3 cub., Pm-3m FOTO G   1.AE.25. Jedwabite group   Jedwabite Fe7(Ta,Nb)3 hex. IMA 1995-043   1.AE.30. Manganese group   Manganese  /  Mangan Mn cub., P4132 N Native manganese was described without IMA approval, but with good data, from Pt-Au placers, central Aldan shield, Siberia, Russia.   1.AE.35. Nisnite group *   Nisnite * Ni3Sn cub., Pm-3m IMA 2009-083   1.AF. Platinum group elements (PGE)   1.AF.05. Ruthenium group   Ruthenium Ru hex., P63/mmc FOTO IMA 1974-013 Osmium Os hex., P63/mmc   FOTO Rd Rutheniridosmine (Ir,Os,Ru) hex., P63/mmc   FOTO Rd   1.AF.10. Rhodium group   Rhodium Rh cub., Fm-3m .  IMA 1974-012 Palladium Pd cub., Fm-3m .  FOTO G Iridium Ir cub., Fm-3m .  FOTO Rd Platinum  /  Platin Pt cub., Fm-3m .  FOTO G   1.AG. PGE-metal alloys   1.AG.05. Hexaferrum group   Hexaferrum (Fe,Os,Ru,Ir) hex., P63/mmc   FOTO IMA 1995-032 Garutiite * (Ni,Fe,Ir) hex., P63/mmc IMA 2008-055 Hexamolybdenum (Mo,Ru,Fe,Ir,Os) hex., P63/mmc IMA 2007-029   1.AG.10. Zvyagintsevite group   Zvyagintsevite Pd3(Pb,Sn) cub., Pm-3m IMA 1966-006 Atokite (Pd,Pt)3Sn cub., Fm-3m   FOTO IMA 1974-041 Rustenburgite (Pt,Pd)3Sn cub., Fm-3m (?) IMA 1974-040   1.AG.15. Taimyrite group   Taimyrite (Pd,Pt)9Cu3Sn4 orth. A Tatyanaite (Pt,Pd)9Cu3Sn4 orth. IMA 1995-049   1.AG.20. Paolovite-Cabriite group   Paolovite Pd2Sn orth., Pbnm   FOTO IMA 1972-025 Cabriite Pd2CuSn orth., Pmmm IMA 1981-057   1.AG.25. Stannopalladinite group   Stannopalladinite Pd3Sn2 hex., P63/mmc   FOTO A Plumbopalladinite Pd3Pb2 hex., P63mc   FOTO IMA 1970-020   1.AG.30. group reserved for similar alloys     1.AG.35. Isoferroplatinum group   Chengdeite Ir3Fe cub., Pm-3m IMA 1994-023 Isoferroplatinum Pt3Fe cub., Pm-3m FOTO IMA 1974-012a   1.AG.40. Tetraferroplatinum group   Tulameenite Pt2FeCu tetr., P4/mmm FOTO IMA 1972-016 Tetraferroplatinum PtFe tetr., P4/mmm .  IMA 1974-012b Ferronickelplatinum Pt(Ni,Fe) tetr., P4/mmm IMA 1982-071   1.AG.45. Hongshiite-Skaergaardite group   Hongshiite PtCu trig. . FOTO A Skaergaardite PdCu cub., Pm-3m . IMA 2003-049   1.AG.50. Yixunite group   Yixunite Pt3In cub., Pm-3m IMA 1995-042   1.AG.55. Damiaoite group   Damiaoite PtIn2 cub., Fm-3m IMA 1995-041   1.AG.60. Niggliite group   Niggliite PtSn hex., P63/mmc     G   1.AG.65. Bortnikovite group   Bortnikovite Pd4Cu3Zn tetr., P4/mmm (?)   IMA 2006-027   1.AG.70. Nielsenite group   Nielsenite PdCu3 tetr., I4/mmm IMA 2004-046   1.AH. Rare-Earth Elements   1.AH.05. Cerium-Gruppe   Cerium Ce   N  * New, not in Nickel & Nichols (2009) in bold: grandfathered, IMA accepted, renamed and redefined (with IMA CNMNC 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 Kupfer, Silber, Gold, Aluminium, Nickel, Blei, Auricuprid, Tetra-Auricuprid, Cuproaurid, Khatyrkit, Anyuiit, Novodneprit, Cupalit, Hunchunit, Zink, Cadmium, Titan, Rhenium, Messing, Tongxinit, Zhanghengit, Danbait, Indium, Molybdän, Zinn, Sorosit, Yuanjiangit, Quecksilber, Kolymit, Belendorffit, Moschellandsbergit, Schachnerit, Paraschachnerit, Luanheit, Eugenit, Weishanit, Goldamalgam, Potarit, Bleiamalgam, Eisen, Chrom, Wolfram, Tantal, Taenit, Tetrataenit, Chromferid, Ferchromid, Wairauit, Awaruit, Jedwabit, Mangan, Ruthenium, Osmium, Rutheniridosmin, Rhodium, Palladium, Iridium, Platin, Hexaferrum, Nielsenit, Zvyagintsevit, Atokit, Rustenburgit, Taimyrit, Tatyanait, Paolovit, Cabriit, Stannopalladinit, Plumbopalladinit, Chengdeit, Isoferroplatin, Tulameenit, Tetraferroplatin, Ferronickelplatin, Hongshiit, Skaergaardit, Yixunit, Damiaoit, Niggliit, Bortnikovite, Cerium © Thomas Witzke / Stollentroll (2007-2012)

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