IMA-CNMNC guidelines; polymorphs; polysomes; structural suffixes; mineral name modifications
Abstract :
[en] New guidelines for the nomenclature of polymorphs and polysomes have been approved by the the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association (IMA-CNMNC). Several cases can be distinguished. (i) Polymorphs with different crystal systems are distinguished by the prefixes cubo-(cubic), hexa-(hexagonal), tetra-(tetragonal), trigo-(trigonal), ortho-(orthorhombic), clino-(monoclinic) and anortho-(triclinic). (ii) Polymorphs with different crystal systems but showing a pseudosymmetry should show the prefix 'pseudo-'. (iii) Polymorphs with the same crystal system but different space groups are distinguished by the prefix 'para-'. If three or more polymorphs show the same crystal system but different space groups, the space group notation may be added as a suffix, though such a nomenclature should be avoided if possible. (iv) Polymorphs with the same space group are distinguished by the prefix 'para-'. (v) Minerals with polymorph suffixes but with different chemical compositions cannot be considered as true polymorphs, so we recommend using the prefix 'meta-', which indicates a close but significantly different chemical composition. (vi) Polysomatic symbols should be placed as a suffix, which indicates the number and types of modules that alternate in the structure, such as in the högbomite supergroup, or as prefixes as in the sartorite homologous series. These recommendations have to be applied for future new mineral proposals, when the authors decide to use structural prefixes or suffixes, however modifications of historical and well-established names have to pass through the CNMNC for approval. In order to be consistent with the new guidelines, 25 mineral names are now modified: domeykite-β becomes trigodomeykite; fergusonite-(Y)-β becomes clinofergusonite-(Y); fergusonite-(Ce)-β becomes clinofergusonite-(Ce); fergusonite-(Nd)-β becomes clinofergusonite-(Nd); ice-VII becomes cubo-ice; roselite-β becomes anorthoroselite; sulphur-β becomes clinosulphur; mertieite-II becomes mertieite; mertieite-I becomes pseudomertieite; uranophane-α becomes uranophane; uranophane-β becomes parauranophane; gersdorffite-P2 1 3 becomes gersdorffite; gersdorffite-Pa3 becomes paragersdorffite; gersdorffite-Pca2 1 becomes orthogersdorffite; betalomonosovite becomes paralomonosovite; lammerite-β becomes paralammerite; nováčekite-I becomes hydronováčekite; nováčekite-II becomes nováčekite; halloysite-7Å becomes halloysite; halloysite-10Å becomes hydrohalloysite; metauranocircite-I becomes metauranocircite; taimyrite-I becomes taimyrite; uranocircite-II becomes uranocircite; andorite IV becomes quatrandorite; and andorite VI becomes senandorite.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Hatert, Frédéric ; Université de Liège - ULiège > Département de géologie > Minéralogie et cristallochimie
Mills, Stuart; Geosciences, Melbourne, Australia
Pasero, Marco; Dipartimento di Scienze della Terra, Università di Pisa, Pisa, Italy
Miyawaki, Ritsuro; Department Geology and Palaeontology, National Museum of Nature and Science, Tsukuba, Japan
Bosi, Ferdinando ; Dipartimento di Scienze della Terra, Sapienza Università di Roma, Roma, Italy
Language :
English
Title :
CNMNC guidelines for the nomenclature of polymorphs and polysomes
Arakcheeva A.V., Pushcharovskii D.Y., Rastsvetaeva R.K., Kashaev A.A., and Nadezhina T.N,. (1995) Crystal structure of nigerite-6H. Kristallografiya, 40, 639-644.
Armbruster T,. (2002) Revised nomenclature of högbomite, nigerite, and taaffeite minerals. European Journal of Mineralogy, 14, 389-395.
Armbruster T., and Feenstra A,. (2004) Lithium in nigerite-group minerals. European Journal of Mineralogy, 16, 247-254.
Armbruster T., Bonazzi P., Akasaka M., Bermanec V., Chopin C., Gieré R., Heuss-Assbichler S., Liebscher A., Menchetti S., Pan Y., and Pasero M,. (2006) Recommended nomenclature of epidote-group minerals. European Journal of Mineralogy, 18, 551-567.
Atencio D,. (2020) Type Mineralogy of Brazil: a Book in Progress. Daniel Atencio editions, Brazil, 661 pp.
Bailey S.W,. (1980) Summary of recommendations of the AIPEA nomenclature committee. The Canadian Mineralogist, 18, 143-150.
Barresi A.A., Orlandi P., and Pasero M,. (2007) History of ardennite and the new mineral ardennite-(V). European Journal of Mineralogy, 19, 581-587.
Bayliss P,. (1986) Subdivision of the pyrite group, and a chemical and X-ray-diffraction investigation of ullmannite. The Canadian Mineralogist, 24, 27-33.
Berthier P,. (1826) Analyse de l'halloysite. Annales de Chimie et de Physique, 32, 332-334.
Biagioni C., George L.L., Cook N. J., Makovicky E., Moëlo Y., Pasero M., Sejkora J., Stanley C.J., Welch M.D., and Bosi F,. (2020) The tetrahedrite group: Nomenclature and classification. American Mineralogist, 105, 109-122.
Bindi L., Steinhardt P.J., Yao N., and Lu P.J,. (2011) Icosahedrite, Al 63 Cu 24 Fe 13, the first natural quasicrystal. American Mineralogist, 96, 928-931.
Bindi L., Yao N., Lin C., Hollister L.S., Andronicos C.L., Distler V.V., Eddy M.P., Kostin A., Kryachko V., MacPherson G.J., Steinhardt W.M., Yudovskaya M., and Steinhardt P.J,. (2015) Decagonite, Al 71 Ni 24 Fe 5, a quasicrystal with decagonal symmetry from the Khatyrka CV3 carbonaceous chondrite. American Mineralogist, 100, 2340-2343.
Bosi F., Hatert F., Hålenius U., Pasero M., Miyawaki R., and Mills S.J,. (2019) On the application of the IMA-CNMNC dominant-valency rule to complex mineral compositions. Mineralogical Magazine, 83, 627-632.
Chopin C., Oberti R., and Cámara F,. (2006) The arrojadite enigma: II. Compositional space, new members and nomenclature of the group. American Mineralogist, 91, 1260-1270.
Cook N.J., Ciobanu C.L., Wagner T., and Stanley C.J,. (2007) Minerals of the system Bi-Te-Se-S related to the tetradymite archetype: review of classification and compositional variation. The Canadian Mineralogist, 45, 665-708.
Cook N.J., Ciobanu C.L., Slattery, A.D., Wade, B.P., and Ehrig, K,. (2021) The mixed-layer structures of ikunolite, laitakarite, joséite-B and joséite-A. Minerals, 11, 920.
Coombs D.S., Alberti A., Armbruster T., Colella C., Galli E., Grice J.D., Liebau F., Mandarino J.A., Minato H., Nickel E.H., Passaglia E., Peacor D.R., Quartieri S., Rinaldi R., Ross M., Sheppard R.A., Tillmanns E., and Vezzalini G,. (1997) Recommended nomenclature for zeolite minerals: report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist, 35, 1571-1606.
de Villers, J.P.R., (1971) Crystal structures of aragonite, strontianite, and witherite. American Mineralogist, 56, 758-767.
de Villiers J.P.R., Liles D.C., and Becker M., (2009) The crystal structure of a naturally occurring 5C pyrrhotite from Sudbury, its chemistry, and vacancy distribution. American Mineralogist, 94, 1405-1410.
Donnay J.D.H., and Donnay G,. (1954) Syntaxic intergrowths in the andorite series. American Mineralogist, 39, 161-171.
Frondel J.W., and Wickman F.E,. (1970) Molybdenite polytypes in theory and occurrence. II. Some naturally-occurring polytypes of molybdenite. American Mineralogist, 55, 1857-1875.
Graf D.L,. (1961). Crystallographic tables for the rhombohedral carbonates. American Mineralogist, 46, 1283-1316.
Grew E.S., Hålenius U., Pasero M., and Barbier J,. (2008) Recommended nomenclature for the sapphirine and surinamite group (sapphirine supergroup). Mineralogical Magazine, 72, 839-876.
Grey I.E., Elliott P., Mumme W.G., MacRae C.M., Kampf A.R., and Mills S.J,. (2022) Redefinition of angastonite, CaMgAl 2 (PO 4) 2 (OH) 4 · 7H 2 O, as an amorphous mineral. European Journal of Mineralogy, 34, 215-221.
Guinier A., Bokij G.B., Boll-Dornberger K., Cowley J.M., Ďurovič S., Jagodzinski H., Krishna P., De Wolff P.M., Zvyagin B.B., Cox D.E., and Goodman P., (1984) Nomenclature of polytype structures. Report of the International Union of Crystallography Ad hoc Committee on the nomenclature of disordered, modulated and polytype structures. Acta Crystallographica, A40, 399-404.
GÜven N., and Burnham C.W,. (1967) The crystal structure of 3T muscovite. Zeitschrift fÜr Kristallographie, 125, 163-183.
Hatert F., and Burke E.A.J,. (2008) The IMA-CNMNC dominant-constituent rule revisited and extended. The Canadian Mineralogist, 46, 717-728.
Hatert F., Pasero M., Perchiazzi N., and Theye T,. (2007) Pumpellyite-(Al), a new mineral from Bertrix, Belgian Ardennes. European Journal of Mineralogy, 19, 247-252.
Hatert F., Mills S.J., Pasero M., and Williams P.A,. (2013) CNMNC guidelines for the use of suffixes and prefixes in mineral nomenclature, and for the preservation of historical names. European Journal of Mineralogy, 25, 113-115.
Kampf A.R., Adams P.M., Kolitsch U., and Steele I.M,. (2009) Meurigite-Na, a new species, and the relationship between phosphofibrite and meurigite. American Mineralogist, 94, 720-727.
Kampf A.R., Mills S.J., Rumsey M.S., Dini M., Birch W.D., Spratt J., Pluth J.J., Steele I.M., Jenkins R.A., and Pinch W.W,. (2012) The heteropolymolybdate family: structural relations, nomenclature scheme and new species. Mineralogical Magazine, 76, 1175-1207.
Khomyakov A.P., Nechelyustov G.N., Ferraris G., Gula A., and Ivaldi G,. (2001) Labuntsovite-Fe and labuntsovite-Mg-two new minerals from the Khibina and Kovdor alkaline massifs, Kola Peninsula. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 130, 36-45.
Kolitsch U., Mills S.J., Miyawaki R., and Blass G,. (2012) Ferriallanite-(La), a new member of the epidote supergroup from the Eifel, Germany. European Journal of Mineralogy, 24, 741-747.
Levinson A.A,. (1966) A system of nomenclature for rare-earth minerals. American Mineralogist, 51, 152-158.
Makovicky E,. (1997) Modular crystal chemistry of sulphosalts and other complex sulphides. Pp. 237-271 in: Modular Aspects of Minerals (Stefano Merlino, editor). EMU Notes in Mineralogy, vol. 1.
Mazzi F., and Galli E,. (1978) Is each analcime different? American Mineralogist, 63, 448-460.
Mills S.J., Hatert F., Nickel E.H., and Ferraris G,. (2009) The standardisation of mineral group hierarchies: application to recent nomenclature proposals. European Journal of Mineralogy, 21, 1073-1080.
Miyawaki R., Yokoyama K., and Husdal T,. (2013) Bastnäsite-(Nd), a new dominant member of the bastnäsite group from the Stetind pegmatite, Tysfjord, Nordland, Norway. European Journal of Mineralogy, 25, 187-191.
Moëlo Y., Makovicky E., and Karup-Moller S,. (1984) New data on the minerals of the andorite series. Neues Jahrbuch fÜr Mineralogie, Monatshefte, 1984, 175-182.
Moëlo Y., Makovicky E., Mozgova N.N., Jambor J.L., Cook N., Pring A., Paar W., Nickel E.H., Graeser S., Karup-Moller S., Balic-Žunic T., Mumme W.G., Vurro F., Topa D., Bindi L., Bente K., and Shimizu M., (2008) Sulfosalt systematics: a review. Report of the sulfosalt sub-committee of the IMA Commission on Ore Mineralogy. European Journal of Mineralogy, 20, 7-46.
Momma K., and Izumi F,. (2011) VESTA 3 for the three-dimensional visualization of crystal, volumetric and morphology data. Journal of Applied Crystallography, 44, 1272-1276.
Nespolo M., Ozawa T., Kawasaki Y., and Sugiyama K,. (2012) Structural relations and pseudosymmetries in the andorite homologous series. Journal of Mineralogical and Petrological Science, 107, 226-243.
Nickel E.H., and Grice J.D,. (1998) The IMA commission on new minerals and mineral names: procedures and guidelines on mineral nomenclature. The Canadian Mineralogist, 36, 913-926.
Pasero M,. (2023) The New IMA List of Minerals. International Mineralogical Association. Commission on new minerals, nomenclature and classification (IMA-CNMNC) [ http://cnmnc.main.jp/ ].
Pechar F,. (1988) The crystal structure of natural monoclinic analcime (NaAlSi 2 O 6 · H 2 O). Zeitschrift fÜr Kristallographie-Crystalline Materials, 184, 63-70.
Pósfai M., and Dódony I,. (1990a) Pyrrhotite superstructures. Part I: Fundamental structures of the NC (N = 2, 3, 4 and 5) type. European Journal of Mineralogy, 2, 525-528.
Pósfai M., and Dódony I,. (1990b) Pyrrhotite superstructures. Part II: A TEM study of 4C and 5C structures. European Journal of Mineralogy, 2, 529-538.
Powell A.V., Vaqueiro P., Knight K.S., Chapon L.C., and Sanchez R.D,. (2004) Structure and magnetism in synthetic pyrrhotite Fe 7 S 8: A powder neutron-diffraction study. Physical Review, B70, 014415.
Pratesi G., Cipriani C., Giuli G., and Birch W.D,. (2003) Santabarbaraite, a new amorphous phosphate mineral. European Journal of Mineralogy, 15, 185-192.
Schönfeld B., Huang J.J., and Moss S.C,. (1983) Anisotropic mean-square displacements (MSD) in single crystals of 2H-and 3R-MoS 2. Acta Crystallographica, B39, 404-407.
Schreyer W., Armbruster T., Bernhardt H.-J., and Medenbach O,. (2003) Pertsevite, a new silicatian magnesioborate mineral with an end-member composition Mg 2 BO 3 F, in kotoite marble from east of Verkhoyansk, Sakha-Yakutia, Russia. European Journal of Mineralogy, 15, 1007-1018.
Sokolova E., Abdu Y., Hawthorne F.C., Genovese A., Cámara F., and Khomyakov A.P,. (2015) From structure topology to chemical composition. XVIII. Titanium silicates: revision of the crystal structure and chemical formula of betalomonosovite, a group-IV TS-block mineral from the Lovozero alkaline massif, Kola Peninsula, Russia. The Canadian Mineralogist, 53, 401-428.
Takeda H., Haga N., and Sadanaga R,. (1971) Structural investigation of polymorphic transition between 2M 2-, 1M-lepidolite and 2M 1 muscovite. Mineralogical Journal, 6, 203-215.
Topa D., and Makovicky E,. (2016) Argentobaumhauerite: name, chemistry, crystal structure, comparison with baumhauerite, and position in the Lengenbach mineralization sequence. Mineralogical Magazine, 80, 819-840.
Topa D., Makovicky E., Putz H., Zagler G., and Tajjedin H,. (2013) Arsenquatrandorite, IMA 2012-087. CNMNC Newsletter No. 16, August 2013, page 2696. Mineralogical Magazine, 77, 2695-2709.
Topa D., Makovicky E., Stoeger B., and Stanley C,. (2017) Heptasartorite, Tl 7 Pb 22 As 55 S 108, enneasartorite, Tl 6 Pb 32 As 70 S 140 and hendekasartorite, Tl 2 Pb 48 As 82 S 172, three members of the anion-omission series of 'sartorites' from the Lengenbach quarry at Binntal, Wallis, Switzerland. European Journal of Mineralogy, 29, 701-712.
Traill R.J,. (1963) A rhombohedral polytype of molybdenite. The Canadian Mineralogist, 7, 524-526.
Velde B,. (1965) Experimental determination of muscovite polymorph stabilities. American Mineralogist, 50, 436-449.
Vignola P., Hatert F., Baijot M., Dal Bo F., Andò S., Bersani D., Pavese A., Risplendente A., and Vanini F,. (2016) Arrojadite-(BaNa), BaNa 3 (Na,Ca)Fe2+13 Al(PO 4) 11 (PO 3 OH)(OH) 2, a new phosphate mineral from the Luna Albite pegmatite, Dorio commune, Lecco province, Italy. The Canadian Mineralogist, 54, 1021-1032.
Vignola P., Hatert F., Rotiroti N., Nestola F., Risplendente A., and Vanini F,. (2019a) Jahnsite-(MnMnFe), Mn2+Mn2+Fe 2 2+Fe 2 3+(PO 4) 4 (OH) 2 · 8H 2 O, a new phosphate mineral from the Malpensata pegmatite, Olgiasca, Colico municipality, Lecco province, Italy. The Canadian Mineralogist, 57, 225-233.
Vignola P., Hatert F., Baijot M., Rotiroti N., Risplendente A., and Varvello S,. (2019b) Jahnsite-(MnMnMg), Mn2+Mn2+Mg2+2 Fe3+2 (PO 4) 4 (OH) 2 · 8H 2 O, a new phosphate mineral species from Sapucaia pegmatite, Sapucaia Do Norte, Galiléia, Minas Gerais, Brazil. The Canadian Mineralogist, 57, 363-370.
Wickman F.E., and Smith D.K,. (1970) Molybdenite polytypes in theory and occurrence. I. Theoretical considerations of polytypism in molybdenite. American Mineralogist, 55, 1843-1856.
