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MINERAL CLASSIFICATION / SYSTEMATIK der MINERALE

           according to E.H. Nickel & M.C. Nichols (2008), 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. FOTOG
    Silver-2H Ag hex., P63/mmcPoly
    Silver-4H Ag hex., P63/mmcPoly
Gold Au cub., Fm-3m. FOTOG
Aluminium Al cub., Fm-3m. FOTOIMA 1980-085a
Nickel Ni cub., Fm-3m. FOTOIMA 1966-039
Lead  /  Blei Pb cub., Fm-3m. FOTOG

The common silver polytype ist 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-3mG
Cuproauride CuAu3 cub., Pm-3m  Q
 
     10 b. Tetra-auricupride Series
Tetra-auricupride CuAu tetr.. FOTOIMA 1982-005


 
1.AA.15. Khatyrkite-Anyuiite group
 
Khatyrkite CuAl2 tetr., I4/mcmIMA 1983-085
Anyuiite AuPb2 tetr., I4/mcmIMA 1987-053
Novodneprite AuPb3 tetr., I42mIMA 2002-032a


 
1.AA.20. Cupalite group
 
Cupalite CuAl orth.IMA 1983-084


 
1.AA.25. Hunchunite group
 
Hunchunite Au2Pb cub., Fd-3m FOTOIMA 1991-033





 
1.AB. Zinc-Brass family
 
1.AB.05. Zinc group
 
Zinc  /  Zink Zn hex., P63/mmc FOTOG
Cadmium Cd hex., P63/mmc  FOTOIMA 1980-086
Titanium Ti hex., P63/mmcN
Rhenium Re hex., P63/mmcD


 
1.AB.10. Brass group
 
Brass  /  Messing (Cu,Zn) cub., Fm-3m. FOTON
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. FOTOA


 
1.AC.10. Tin group
 
Tin  /  Zinn Sn tetr., I41/amd  FOTOG


 
1.AC.15. Bronce group
 
Sorosite Cu1+x(Sn,Sb)     x < 0.2 hex., P63/mmcIMA 1994-047
Yuanjiangite AuSn hex., P63/mmcIMA 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		  FOTOG

Mercury is solid below -38.85ºC.


 
1.AD.10. Copperamalgam group
 
Kolymite Cu7Hg6 cub.IMA 1979-046
Belendorffite Cu7Hg6 trig., R-3m FOTOIMA 1989-024


 
1.AD.15. Silveramalgam group
 
Moschellandsbergite Ag2Hg3 cub., I23  FOTOG
Schachnerite Ag1.1Hg0.9 hex., P63/mmcIMA 1971-055
Paraschachnerite Ag1.2Hg0.8 orth.IMA 1971-056
Luanheite Ag3Hg hex.IMA 1983-083
Eugenite Ag11Hg2 cub., I-43mIMA 1981-037


 
1.AD.20. Goldamalgam group
 
Weishanite (Au,Ag)1.2Hg0.8 hex., P63/mmcIMA 1982-076
Goldamalgam (Au,Ag)Hg cub., Im-3mN


 
1.AD.25. Palladiumamalgam group
 
Potarite PdHg tetr., P4/mmm FOTOG


 
1.AD.30. Leadamalgam group
 
Leadamalgam  /  Bleiamalgam Pb0.7Hg0.3 tetr., I4/mmm FOTOIMA 1981-042





 
1.AE. Iron-Chromium family
 
1.AE.05. Iron-Chromium group
 
Iron  /  Eisen Fe cub., Im-3m. FOTOG
Chromium  /  Chrom Cr cub., Im-3m.   FOTOIMA 1980-094
Tungsten  /  Wolfram W cub., Im-3m.  FOTON
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.  FOTOG
    Taenite-1M FeNi mon., Pm .  Poly
Tetrataenite FeNi tetr., P4/mmm.  FOTOIMA 1979-076
Antitaenite (Fe,Ni)   N


 
1.AE.15. Chromferide group
 
Chromferide Fe3Cr1-X cub., Pm-3m FOTOIMA 1984-021
Ferchromide Cr3Fe1-X cub., Pm-3mIMA 1984-022
Wairauite CoFe cub., Pm-3mIMA 1964-015


 
1.AE.20. Awaruite group
 
Awaruite FeNi3 cub., Pm-3mFOTOG


 
1.AE.25. Jedwabite group
 
Jedwabite Fe7(Ta,Nb)3 hex.IMA 1995-043


 
1.AE.30. Manganese group
 
Manganese  /  Mangan Mn cub., P4132N

Native manganese was described without IMA approval, but with good data, from Pt-Au placers, central Aldan shield, Siberia, Russia.





 
1.AF. Platinum group elements (PGE)
 
1.AF.05. Ruthenium group
 
Ruthenium Ru hex., P63/mmc FOTOIMA 1974-013
Osmium Os hex., P63/mmc  FOTORd
Rutheniridosmine (Ir,Os,Ru) hex., P63/mmc  FOTORd


 
1.AF.10. Rhodium group
 
Rhodium Rh cub., Fm-3m.  IMA 1974-012
Palladium Pd cub., Fm-3m.  FOTOG
Iridium Ir cub., Fm-3m.  FOTORd
Platinum  /  Platin Pt cub., Fm-3m.  FOTOG





 
1.AG. PGE-metal alloys
 
1.AG.05. Hexaferrum group
 
Hexaferrum (Fe,Os,Ru,Ir) hex., P63/mmc  FOTOIMA 1995-032
Hexamolybdenum (Mo,Ru,Fe,Ir,Os) hex., P63/mmcIMA 2007-029


 
1.AG.10. Zvyagintsevite group
 
Zvyagintsevite Pd3(Pb,Sn) cub., Pm-3mIMA 1966-006
Atokite (Pd,Pt)3Sn cub., Fm-3m  FOTOIMA 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  FOTOIMA 1972-025
Cabriite Pd2CuSn orth., PmmmIMA 1981-057


 
1.AG.25. Stannopalladinite group
 
Stannopalladinite Pd3Sn2 hex., P63/mmc  FOTOA
Plumbopalladinite Pd3Pb2 hex., P63mc  FOTOIMA 1970-020


 
1.AG.30. group reserved for similar alloys
 

 
1.AG.35. Isoferroplatinum group
 
Chengdeite Ir3Fe cub., Pm-3mIMA 1994-023
Isoferroplatinum Pt3Fe cub., Pm-3m FOTOIMA 1974-012a


 
1.AG.40. Tetraferroplatinum group
 
Tulameenite Pt2FeCu tetr., P4/mmm FOTOIMA 1972-016
Tetraferroplatinum PtFe tetr., P4/mmm.  IMA 1974-012b
Ferronickelplatinum Pt(Ni,Fe) tetr., P4/mmmIMA 1982-071


 
1.AG.45. Hongshiite-Skaergaardite group
 
Hongshiite PtCu trig.. FOTOA
Skaergaardite PdCu cub., Pm-3m. IMA 2003-049


 
1.AG.50. Yixunite group
 
Yixunite Pt3In cub., Pm-3mIMA 1995-042


 
1.AG.55. Damiaoite group
 
Damiaoite PtIn2 cub., Fm-3mIMA 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/mmmIMA 2004-046





 
1.AH. Rare-Earth Elements
 
1.AH.05. Cerium-Gruppe
 
Cerium Ce   N





 * New, not in Nickel & Nichols (2008)

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 (2007-2009)


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