The information given here is provided by the IMA Commission on New Minerals, Nomenclature and Classification for comparative purposes and as a service to mineralogists working on new species.
Each mineral is described in the following format:
Mineral name, if the authors agree on its release prior to the full description appearing in press
Chemical formula
Type locality
Full authorship of proposal
E-mail address of corresponding author
Relationship to other minerals
Crystal system, Space group; Structure determined, yes or no
Unit-cell parameters
Strongest lines in the powder X-ray diffraction pattern
Type specimen repository and specimen number
Citation details for the mineral prior to publication of full description
Citation details concern the fact that this information will be published in the Mineralogical Magazine on a routine basis, as well as being added month by month to the Commission's web site.
It is still a requirement for the authors to publish a full description of the new mineral.
NO OTHER INFORMATION WILL BE RELEASED BY THE COMMISSION
NEW MINERAL PROPOSALS APPROVED IN AUGUST 2018
IMA No. 2018-041
Milanriederite
Ca19Fe3+Al4(Mg4Al4)Si18O67(OH)11
Kombat mine, Grootfontein district, Otjozondjupa region, Namibia
Nikita V. Chukanov*, Taras L. Panikorovskii, Alexey G. Goncharov, Igor V. Pekov, Dmitry I. Belakovskiy, Sergey N. Britvin, Steffen Möckel and Svetlana A. Vozchikova
*E-mail: nikchukanov@yandex.ru
Vesuvianite group
Tetragonal: P4/nnc; structure determined
a = 15.6578(4), c = 11.8597(5) Å
2.970(50), 2.774(100), 2.617(87), 2.481(30), 2.143(19), 1.676(17), 1.628(38), 1.570(12)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5224/1
How to cite: Chukanov, N.V., Panikorovskii, T.L., Goncharov, A.G., Pekov, I.V., Belakovskiy, D.I., Britvin, S.N., Möckel, S. and Vozchikova, S.A. (2018) Milanriederite, IMA 2018-041. CNMNC Newsletter No. 45, October 2018, page 1226; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-045
Hanauerite
AgHgSI
Schöne Aussicht Mine, Dernbach, Neuwied, Wied Iron Spar District, Westerwald, Rhineland-Palatinate, Germany (holotype); Friedrichssegen Mine, Frücht, Bad Ems District, Lahn valley, Rhineland-Palatinate, Germany (cotype)
Igor V. Pekov*, Natalia V. Zubkova, Sergey N. Britvin, Atali A. Agakhanov, Yury S. Polekhovsky, Dmitry Y. Pushcharovsky, Gerhard Möhn, Joy Desor and Günter Blass
*E-mail: igorpekov@mail.ru
Known synthetic analogue
Orthorhombic: Pmma; structure determined
a = 9.932(4), b = 4.622(2), c = 9.891(4) Å
9.88(20), 4.185(32), 3.857(58), 3.201(22), 3.138(20), 2.793(100), 2.477(30), 2.312(22)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration numbers 5223/1 (Schöne Aussicht Mine) and 5223/2 (Friedrichssegen Mine)
How to cite: Pekov, I.V., Zubkova, N.V., Britvin, S.N., Agakhanov, A.A., Polekhovsky, Y.S., Pushcharovsky, D.Y., Möhn, G., Desor, J. and Blass, G. (2018) Hanauerite, IMA 2018-045. CNMNC Newsletter No. 45, October 2018, page 1226; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-046
Manaevite-(Ce)
Ca11(Ce,H2O,Ca)8Mg(Al,Fe)4(Mg,Ti,Fe3+)8 [Si2O7]4[(SiO4)8(H4O4)2](OH)9
Kovdor massif, Kola Peninsula, Russia
Mikhail M. Moiseev, Taras L. Panikorovskii*, Sergey M. Aksenov, Anton S. Mazur, Julia A. Mikhailova, Victor N. Yakovenchuk, Ayya V. Bazai, Gregory Y. Ivanyuk, Atali A. Agakhanov, Vladimir V. Shilovskikh, Igor V. Pekov, Anatoly V. Kasatkin, Vyacheslav S. Rusakov, Vasiliy O. Yapaskurt, Vladimir Y. Karpenko and Sergey V. Krivovichev
*E-mail: taras.panikorovsky@spbu.ru
Vesuvianite group
Tetragonal: P4/nnc; structure determined
a = 15.925(1), c = 11.966(1) Å
5.98(27), 4.61(30), 3.289(31), 2.991(100), 2.787(95), 2.636(81), 2.503(47), 1.659(25)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5075/1, and the Mineralogical Museum of St. Petersburg State University, St. Petersburg, Russia, registration No. 1/19666
How to cite: Moiseev, M.M., Panikorovskii, T.L., Aksenov, S.M., Mazur, A.S., Mikhailova, J.A., Yakovenchuk, V.N., Bazai, A.V., Ivanyuk, G.Y., Agakhanov, A.A., Shilovskikh, V.V., Pekov, I.V., Kasatkin, A.V., Rusakov, V.S., Yapaskurt, V.O., Karpenko, V.Y. and Krivovichev, S.V. (2018) Manaevite-(Ce), IMA 2018-046. CNMNC Newsletter No. 45, October 2018, page 1226; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-047
Parafiniukite
Ca2Mn3(PO4)3Cl
Szklary serpentinite massif, ca. 6 km N of the Ząbkowice Śląskie town, ca. 60 km S of Wrocław, Lower Silesia, Poland (50°39.068'N, 16°49.932'E)
Adam Pieczka*, Marco Pasero, Cristian Biagioni, Bożena Gołębiowska, Piotr Jeleń and Maciej Sitarz
*E-mail: pieczka@agh.edu.pl
Apatite supergroup
Hexagonal: P63/m; structure determined
a = 9.4900(6), c = 6.4777(5) Å
3.470(16), 3.239(39), 2.801(76), 2.740(100), 2.675(50), 2.544(69), 1.914(31), 1.864(22)
Type material is deposited in the collections of the Mineralogical Museum, University of Wrocław, Cybulskiego 30, 50–205 Wrocław, Poland, catalogue number MMWr IV8024 (holotype), and the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italy, catalogue number 19902 (crystal used for SCXRD study)
How to cite: Pieczka, A., Pasero, M., Biagioni, C., Gołębiowska, B., Jeleń, P. and Sitarz, M. (2018) Parafiniukite, IMA 2018-047. CNMNC Newsletter No. 45, October 2018, page 1226; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-048
Bicapite
[KNa2Mg2(H2O)25][H2PV5+12O40(V5+O)2]
Pickett Corral mine, Bull Canyon, ca. 13 km W of the town of Naturita, Montrose Co., Colorado, USA (38.199434°N, 108.839946°W)
Anthony R. Kampf*, John M. Hughes, Barbara P. Nash and Joe Marty
*E-mail: akampf@nhm.org
Structurally related to kegginite
Tetragonal: I4/m; structure determined
a = 11.545(1), c = 20.546(1) Å
10.14(100), 5.037(10), 4.348(10), 4.142(8), 2.978(29), 2.809(11), 2.583(11), 1.820(8)
Cotype material is deposited in the mineralogical collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 66915 and 66916
How to cite: Kampf, A.R., Hughes, J.M., Nash, B.P. and Marty, J. (2018) Bicapite, IMA 2018-048. CNMNC Newsletter No. 45, October 2018, page 1227; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-049
Antofagastaite
Na2Ca(SO4)2·1.5H2O
Coronel Manuel Rodríguez mine, Mejillones peninsula, Antofagasta province, Antofagasta region, Chile
Igor V. Pekov*, Vadim M. Kovrugin, Oleg I. Siidra, Nikita V. Chukanov, Dmitry I. Belakovskiy, Natalia N. Koshlyakova, Vasiliy O. Yapaskurt, Anna G. Turchkova and Gerhard Möhn
*E-mail: igorpekov@mail.ru
Closely related to syngenite
Monoclinic: P21/m; structure determined
a = 6.4596(4), b = 6.8703(5), c = 9.4685(7) Å, β = 104.580(4)°
9.17(100), 5.501(57), 4.595(32), 3.437(59), 3.058(43), 2.918(50), 2.795(35), 2.753(50)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5222/1
How to cite: Pekov, I.V., Kovrugin, V.M., Siidra, O.I., Chukanov, N.V., Belakovskiy, D.I., Koshlyakova, N.N., Yapaskurt, V.O., Turchkova, A.G. and Möhn, G. (2018) Antofagastaite, IMA 2018-049. CNMNC Newsletter No. 45, October 2018, page 1227; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-050
Potassic-jeanlouisite
K(NaCa)(Mg4Ti)Si8O22O2
Zirkle Mesa, Leucite Hills, close to the town of Superior, Wyoming, USA (41°46'54.58”N, 108°53'23.82”W)
Roberta Oberti*, Massimo Boiocchi, Frank C. Hawthorne, Giancarlo Della Ventura and Gunnar Färber
*E-mail: oberti@crystal.unipv.it
Amphibole supergroup
Monoclinic: C2/m; structure determined
a = 9.937(1), b = 18.010(2), c = 5.2808(5) Å, β = 104.955(2)°
8.472(59), 3.380(87), 3.284(68), 3.151(79), 2.945(50), 2.703(100), 2.587(52), 2.541(80)
Type material is deposited in the collections of the Museo di Mineralogia, Sistema Museale di Ateneo, University of Pavia, catalogue number 2018-01
How to cite: Oberti, R., Boiocchi, M., Hawthorne, F.C., Della Ventura, G. and Färber, G. (2018) Potassic-jeanlouisite, IMA 2018-050. CNMNC Newsletter No. 45, October 2018, page 1227; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-052
Hydroxylhedyphane
Ca2Pb3(AsO4)3(OH)
Långban Fe-Mn-(Ba-As-Pb-Sb) deposit, Filipstad district, Värmland, Sweden (59.86°N, 14.26°E, 215 m a.s.l.)
Cristian Biagioni*, Ulf Hålenius, Marco Pasero, Andreas Karlsson and Ferdinando Bosi
*E-mail: cristian.biagioni@unipi.it
Apatite supergroup
Trigonal: P 
$\overline 3 $; structure determined
a = 10.0414(3), c = 7.2752(2) Å
4.127(m), 3.278(m), 2.997(vs), 2.940(s), 2.894(m), 2.176(m), 2.067(m), 1.950(s)
Type material is deposited in the mineralogical collections of the Swedish Museum of Natural History, Box 50007, SE-10405 Stockholm, Sweden, catalogue number NRM #19070258, and the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Italy, catalogue number 19903
How to cite: Biagioni, C., Hålenius, U., Pasero, M., Karlsson, A. and Bosi, F. (2018) Hydroxylhedyphane, IMA 2018-052. CNMNC Newsletter No. 45, October 2018, page 1227; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-053
Fanfaniite
Ca4MnAl4(PO4)6(OH)4·12H2O
East dump of the Foote Lithium Company mine, Kings Mountain district, Cleveland Co., North Carolina, USA (35°12'40”N, 81°21'20”W); Hagendorf Süd pegmatite mine, 60 and 67 m level, Oberpfalz, Bavaria, Germany (49°39'1”N, 12°27'35”E)
Ian E. Grey*, Anthony R. Kampf, Jason B. Smith and Colin M. MacRae
*E-mail: ian.grey@csiro.au
Montgomeryite group
Monoclinic: C2/c; structure determined
a = 10.032(5), b = 24.162(9), c = 6.241(2) Å, β = 91.47(2)°
12.14(33), 5.13(97), 3.137(28), 2.938(100), 2.817(19), 2.618(70), 2.249(25), 1.740(22)
Type material is deposited in the mineralogical collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 66771 (Foote mine holotype) and 66772 (Foote mine cotype), and the Museum Victoria, Australia, registration number M48795 (Hagendorf Süd cotype)
How to cite: Grey, I.E., Kampf, A.R., Smith, J.B. and MacRae, C.M. (2018) Fanfaniite, IMA 2018-053. CNMNC Newsletter No. 45, October 2018, page 1228; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-054
Aniyunwiyaite
Ca3Mn2+Fe2+Al4(PO4)6(OH)4·12H2O
East dump of the Foote Lithium Company mine, Kings Mountain district, Cleveland Co., North Carolina, USA (35°12'40”N, 81°21'20”W)
Ian E. Grey*, Anthony R. Kampf, Jason B. Smith and Colin M. MacRae
*E-mail: ian.grey@csiro.au
Closely related to montgomeryite-group minerals
Triclinic: P 
$\overline 1 $; structure determined
a = 6.255(3), b = 13.197(4), c = 19.410(5) Å, α = 106.817(7), β = 90.81(2), γ = 90.65(2)°
12.28(30), 5.150(100), 4.402(16), 2.955(39), 2.913(17), 2.630(59), 1.852(14), 1.748(17)
Type material is deposited in the mineralogical collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 66773 (holotype) and 66774 (cotype)
How to cite: Grey, I.E., Kampf, A.R., Smith, J.B. and MacRae, C.M. (2018) Aniyunwiyaite, IMA 2018-054. CNMNC Newsletter No. 45, October 2018, page 1228; Mineralogical Magazine, 82, 1225–1232.
NEW MINERAL PROPOSALS APPROVED IN SEPTEMBER 2018
IMA No. 2018-056
Bonacinaite
Sc(AsO4)·2H2O
In the dumps of the Varenche mine, Saint-Barthélemy valley, Nus, Val d'Aosta, Italy (45°47'25”N, 7°28'55”E)
Fernando Cámara*, Marco E. Ciriotti, Uwe Kolitsch, Pietro Vignola, Frédéric Hatert, Erica Bittarello, Roberto Bracco and Giorgio M. Bortolozzi
*E-mail: fernando.camara@unimi.it
The As-analogue of kolbeckite
Monoclinic: P21/n; structure determined
a = 5.533(1), b = 10.409(2), c = 9.306(2) Å, β = 91.94(3)°
4.865(100), 4.638(18), 4.525(32), 3.771(34), 2.924(44), 2.759(31), 2.665(94), 1.733(36)
Type material is deposited in the mineralogical collections of the Museum of the Earth Sciences Department, University of Milano, catalogue number MCMGPG-H2018-001 (holotype), the Natural History Museum, Vienna, catalogue number O 571 (crystal used for the crystal structure determination), and the Laboratory of Mineralogy, University of Liège, Belgium, catalogue number 21180 (crystal used for optical measurements)
How to cite: Cámara, F., Ciriotti, M.E., Kolitsch, U., Vignola, P., Hatert, F., Bittarello, E., Bracco, R. and Bortolozzi, G.M. (2018) Bonacinaite, IMA 2018-056. CNMNC Newsletter No. 45, October 2018, page 1228; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-057
Kruijenite
Ca4Al4(SO4)F2(OH)16·2H2O
Feuerberg quarry, Hinterweiler municipality, 7 km N of Daun, Eifel paleovolcanic region, Rhineland-Palatinate, Germany
Nikita V. Chukanov*, Natalia V. Zubkova, Günter Blass, Igor V. Pekov, Dmitry A. Varlamov, Dmitry I. Belakovskiy, Dmitry A. Ksenofontov, Sergey N. Britvin and Dmitry Y. Pushcharovsky
*E-mail: chukanov@icp.ac.ru
New structure type
Tetragonal: P4/nnc; structure determined
a = 12.9299(4), c = 5.2791(3) Å
9.12(77), 4.565(100), 4.084(50), 2.964(74), 2.694(27), 2.321(24), 2.284(29), 1.971(40)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5233/1
How to cite: Chukanov, N.V., Zubkova, N.V., Blass, G., Pekov, I.V., Varlamov, D.A., Belakovskiy, D.I., Ksenofontov, D.A., Britvin, S.N. and Pushcharovsky, D.Y. (2018) Kruijenite, IMA 2018-057. CNMNC Newsletter No. 45, October 2018, page 1229; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-058
Erikjonssonite
(Pb32O21)[(V,Si,Mo,As)O4]4Cl9
Kombat mine, Grootfontein district, Otjozondjupa region, Namibia
Nikita V. Chukanov*, Oleg I. Siidra, Yury S. Polekhovsky, Igor V. Pekov, Dmitry A. Varlamov, Vera N. Ermolaeva and Alla A. Virus
*E-mail: nikchukanov@yandex.ru
Structurally and chemically related to hereroite
Monoclinic: C2/c; structure determined
a = 23.200(5), b = 22.708(5), c = 12.418(3) Å, β = 102.167(4)°
3.501(24), 2.980(100), 2.794(45), 1.990(24), 1.977(21), 1.762(20), 1.648(33), 1.598(18)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5226/1
How to cite: Chukanov, N.V., Siidra, O.I., Polekhovsky, Y.S., Pekov, I.V., Varlamov, D.A., Ermolaeva, V.N. and Virus, A.A. (2018) Erikjonssonite, IMA 2018-058. CNMNC Newsletter No. 45, October 2018, page 1229; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-059
Demagistrisite
BaCa2Mn3+4(Si3O10)(Si2O7)(OH)4·3H2O
Cerchiara mine, Liguria, Italy (44.19944°N, 9.70028°E)
Anthony R. Kampf*, Fernando Cámara, Fabrizio Nestola, Marco E. Ciriotti and Corrado Balestra
*E-mail: akampf@nhm.org
New structure type
Orthorhombic: Amm2; structure determined
a = 16.3160(6), b = 6.1830(2), c = 9.0740(3) Å
16.21(49), 4.86(44), 4.34(56), 3.196(43), 2.871(54), 2.731(100), 2.671(74), 2.426(51)
Type material is deposited in the mineralogical collections of the Museum of the Earth Sciences Department, Università di Milano, Via Mangiagalli 34, 20133 Milano, Italy, registration number MCMGPG-H2018-004 (holotype), and the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 66942 and 66943 (cotype)
How to cite: Kampf, A.R., Cámara, F., Nestola, F., Ciriotti, M.E. and Balestra, C. (2018) Demagistrisite, IMA 2018-059. CNMNC Newsletter No. 45, October 2018, page 1229; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-060
Monteneveite
Ca3Sb5+2(Fe3+2Fe2+)O12
Monteneve (Schneeberg) mine, Passiria Valley, Bolzano Province, Trentino-Alto Adige (Südtirol), Italy (46°53'46”N, 11°10'46”E, ca. 2300 m a.s.l.)
Andreas Karlsson, Dan Holtstam, Luca Bindi, Paola Bonazzi and Matthias Konrad-Schmolke
*E-mail: andreas.karlsson@nrm.se
Garnet supergroup
Cubic: Ia 
$\overline 3 $d
a = 12.6093(2) Å
4.45(100), 3.147(60), 2.814(40), 2.571(80), 1.993(40), 1.683(60), 1.575(20), 1.409(20)
Type material is deposited in the mineralogical collections of the Department of Geosciences, Swedish Museum of Natural History, Box 50007, SE-10405 Stockholm, Sweden, collection number GEO-NRM #HS3903
How to cite: Karlsson, A., Holtstam, D., Bindi, L., Bonazzi, P. and Konrad-Schmolke, M. (2018) Monteneveite, IMA 2018-060. CNMNC Newsletter No. 45, October 2018, page 1229; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-061
Nataliakulikite
Ca4Ti2(Fe3+,Fe2+)(Si,Fe3+,Al)O11
Negev desert, ca. 5 km SE of Arad, Hatrurim Basin, Israel (31°13'59”N, 35°16'27”E)
Victor V. Sharygin*, Grigory A. Yakovlev, Richard Wirth, Yurii V. Seryotkin, Ellina V. Sokol, Elena N. Nigmatulina, Nikolai S. Karmanov and Leonid A. Pautov
*E-mail: sharygin@ugm.nsc.ru
Perovskite supergroup
Orthorhombic: Pnma
a = 5.254, b = 30.302, c = 5.488 Å
15.151(19), 3.795(8), 2.744(23), 2.681(100), 2.627(26), 1.898(30), 1.894(22), 1.572(14)
Type material is deposited in the mineralogical collections of the Central Siberian Geological Museum, V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the RAS, prospekt Akademika Koptyuga 3, Novosibirsk 630090, Russia, catalogue number VII-101/1
How to cite: Sharygin, V.V., Yakovlev, G.A., Wirth, R., Seryotkin, Y.V., Sokol, E.V., Nigmatulina, E.N., Karmanov, N.S. and Pautov, L.A. (2018) Nataliakulikite, IMA 2018-061. CNMNC Newsletter No. 45, October 2018, page 1230; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-062
Breyite
Ca3Si3O9
As inclusion within a diamond from the Sao Luiz placer deposits, Juina area, Mato Grosso State, Brazil
Frank Brenker, Fabrizio Nestola*, Lion Brenker, Luca Peruzzo, Luciano Secco and Jeffrey W. Harris
*E-mail: fabrizio.nestola@unipd.it
A polymorph of wollastonite
Triclinic: P 
$\overline 1 $; structure determined
a = 6.6970(4), b = 9.2986(7), c = 6.6501(4) Å, α = 83.458(6), β = 76.226(6), γ = 69.581(7)°
4.91(16), 3.13(29), 3.02(100), 2.89(80), 2.61(45), 2.53(19), 1.79(18), 1.66(20)
Type material is deposited in the mineralogical collections of the Museo di Mineralogia, University of Padova, Via Giotto 1, 35122 Padova, Italy, catalogue number MMP 20371
How to cite: Brenker, F., Nestola, F., Brenker, L., Peruzzo, L., Secco, L. and Harris, J.W. (2018) Breyite, IMA 2018-062. CNMNC Newsletter No. 45, October 2018, page 1230; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-065
Ferrirockbridgeite
(Fe3+0.67☐0.33)2(Fe3+)3(PO4)3(OH)4(H2O)
Palermo No.1 pegmatite, North Groton, Grafton Co., New Hampshire, USA (43°45.038'N, 71°53.378'W)
Ian E. Grey*, Anthony R. Kampf, Colin M. MacRae, John D. Cashion, Yesim Gozukara and Finlay L. Shanks
*E-mail: ian.grey@csiro.au
Rockbridgeite group
Orthorhombic: Bbmm; structure determined
a = 13.853(1), b = 16.928(1), c = 5.1917(5) Å
6.994(21), 4.853(26), 3.615(24), 3.465(33), 3.424(39), 3.205(100), 2.774(22), 1.603(24)
Type material is deposited in the collections of the Mineralogical and Geological Museum, Harvard University, 20 Oxford Street, Cambridge, MA 02138, USA, catalogue number 95086
How to cite: Grey, I.E., Kampf, A.R., MacRae, C.M., Cashion, J.D., Gozukara, Y. and Shanks, F.L. (2018) Ferrirockbridgeite, IMA 2018-065. CNMNC Newsletter No. 45, October 2018, page 1230; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-066
Udinaite
NaMg4(VO4)3
Arsenatnaya fumarole, Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka peninsula, Far-Eastern Region, Russia (55°41'N, 160°14'E, 1200 m asl)
Igor V. Pekov*, Natalia V. Zubkova, Natalia N. Koshlyakova, Dmitry I. Belakovskiy, Marina F. Vigasina, Atali A. Agakhanov, Anna G. Turchkova, Sergey N. Britvin, Evgeny G. Sidorov and Dmitry Y. Pushcharovsky
*E-mail: igorpekov@mail.ru
Known synthetic analogue
Tetragonal: I 
$\overline 4 $2d; structure determined
a = 6.8011(2), c = 19.184(1) Å
4.654(19), 4.294(22), 3.340(28), 3.003(48), 2.774(100), 2.747(17), 2.663(16), 1.699(26)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5237/1
How to cite: Pekov, I.V., Zubkova, N.V., Koshlyakova, N.N., Belakovskiy, D.I., Vigasina, M.F., Agakhanov, A.A., Turchkova, A.G., Britvin, S.N., Sidorov, E.G. and Pushcharovsky, D.Y. (2018) Udinaite, IMA 2018-066. CNMNC Newsletter No. 45, October 2018, page 1230; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-067
Arsenudinaite
NaMg4(AsO4)3
Arsenatnaya fumarole, Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka peninsula, Far-Eastern Region, Russia (55°41'N, 160°14'E, 1200 m asl)
Igor V. Pekov*, Natalia V. Zubkova, Natalia N. Koshlyakova, Dmitry I. Belakovskiy, Atali A. Agakhanov, Anna G. Turchkova, Sergey N. Britvin, Evgeny G. Sidorov and Dmitry Y. Pushcharovsky
*E-mail: igorpekov@mail.ru
Known synthetic analogue
Tetragonal: I 
$\overline 4 $2d; structure determined
a = 6.8022(2), c = 19.1843(6) Å
4.657(26), 4.300(24), 3.341(29), 3.007(46), 2.775(100), 2.750(17), 2.663(17), 1.698(27)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5238/1
How to cite: Pekov, I.V., Zubkova, N.V., Koshlyakova, N.N., Belakovskiy, D.I., Agakhanov, A.A., Turchkova, A.G., Britvin, S.N., Sidorov, E.G. and Pushcharovsky, D.Y. (2018) Arsenudinaite, IMA 2018-067. CNMNC Newsletter No. 45, October 2018, page 1231; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-068
Carletonmooreite
Ni3Si
Norton County meteorite, fall in Norton Co., Kansas, USA
Chi Ma*, Laurence A.J. Garvie and Axel Wittmann
*E-mail: chi@gps.caltech.edu
A new member of silicide minerals
Cubic: Pm 
$\overline 3 $m
a = 3.51 Å
3.510(8), 2.026(100), 1.755(49), 1.241(31), 1.058(34), 1.013(10), 0.805(11), 0.785(10)
Type material is deposited in the Carleton B. Moore Meteorite Collection of the Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287, USA, specimen NC12
How to cite: Ma, C., Garvie, L.A.J. and Wittmann, A. (2018) Carletonmooreite, IMA 2018-068. CNMNC Newsletter No. 45, October 2018, page 1231; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-069
Falgarite
K4(VO)3(SO4)5
Kuhi-Malik gorge near Ravat kishlak, right bank of the Yagnob River, Fan-Yagnob coal deposit outline, ca. 100 km N of Dushanbe, Tajikistan (39°11'02”N, 68°35'11”E)
Leonid A. Pautov*, Mirak A. Mirakov, Oleg I. Siidra, Еvgeny V. Nazarchuk, Abdulkhak R. Faiziev and Vladimir Y. Karpenko
*E-mail: pla58@mail.ru
Known synthetic analogue
Monoclinic: C2/c; structure determined
a = 8.709(1), b = 16.146(2), c = 14.450(2) Å, β = 106.785(4)°
4.26(40), 3.52(40), 3.34(40), 3.20(70), 3.17(80), 3.14(70), 3.01(50), 2.881(100)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5234/1
How to cite: Pautov, L.A., Mirakov, M.A., Siidra, O.I., Nazarchuk, Е.V., Faiziev, A.R. and Karpenko, V.Y. (2018) Falgarite, IMA 2018-069. CNMNC Newsletter No. 45, October 2018, page 1231; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-070
Alterite
Zn2Fe3+4(SO4)4(C2O4)2(OH)4⋅17H2O
Near the Cliff Dwellers Lodge, Vermillion Cliffs, Coconino Co., Arizona, USA (36°43'1.3”N, 111°47’36”W)
Hexiong Yang*, Ronald B. Gibbs, Stanley H. Evans, Robert T. Downs and Zak Jabrin
*E-mail: hyang@email.arizona.edu
New structure type
Monoclinic: C2/c; structure determined
a = 16.7696(5), b = 9.4020(2), c = 25.3466(8) Å, β = 108.252(1)°
5.848(100), 4.589(36), 4.363(46), 4.189(57), 4.127(50), 3.898(39), 3.701(80), 2.663(46)
Type material is deposited in the collections of the University of Arizona Mineral Museum, 1601 E University Blvd, Tucson, AZ 85719, USA, catalogue # 22041, and the RRUFF Project, deposition # R180005
How to cite: Yang, H., Gibbs, R.B., Evans, S.H., Downs, R.T. and Jabrin, Z. (2018) Alterite, IMA 2018-070. CNMNC Newsletter No. 45, October 2018, page 1232; Mineralogical Magazine, 82, 1225–1232.
IMA No. 2018-072
Crowningshieldite
(Ni0.9Fe0.10)S
As inclusion within a diamond from the Letseng mine, Lesotho (29°0'01”S, 28°51'43”E, 3100 m a.s.l.)
Evan M. Smith, Fabrizio Nestola*, Leonardo Pasqualetto, Federico Zorzi, Luciano Secco and Wuyi Wang
*E-mail: fabrizio.nestola@unipd.it
Known synthetic analogue
Hexagonal: P63/mmc
a = 3.44(1), c = 5.36(1) Å
2.978(53), 2.693(17), 2.608(35), 1.992(100), 1.718(55), 1.453(7), 1.332(7), 1.304(17)
Type material is deposited in the collections of the Mineralogical Museum, University of Padova, Via Giotto 1, I-35121, Padova, Italy, catalogue number MM 20501 (holotype), and the Gemological Institute of America Museum, Carlsbad, California 92008, USA (cotype)
How to cite: Smith, E.M., Nestola, F., Pasqualetto, L., Zorzi, F., Secco, L. and Wang, W. (2018) Crowningshieldite, IMA 2018-072. CNMNC Newsletter No. 45, October 2018, page 1232; Mineralogical Magazine, 82, 1225–1232.
NOMENCLATURE PROPOSALS APPROVED IN AUGUST 2018
IMA 18-D: Redefinition of the ideal formulae for mottanaite-(Ce) and ciprianiite
The proposal 18-D is accepted. Accordingly, the ideal formula of mottanaite-(Ce) is changed from Ca4(Ce,Ca)2AlBe2[B4Si4O22]O2 to Ca4Ce2 Al(Be1.5☐0.5)Σ2[B4Si4O22]O2, and the ideal formula of ciprianiite is changed from Ca4[(Th,U)REE]Σ2Al☐2[B4Si4O22](OH)2 to Ca4[(Th,U)Ca]Σ2 Al(Be0.5☐1.5)Σ2[B4Si4O22](OH)2.
