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 OCTOBER 2018
IMA No. 2018-075
Nipalarsite
Ni8Pd3As4
Monchetundra layered intrusion (borehole 1819, depth 101.4 m), Kola Peninsula, Russia (67°52′22″, 32°47′60″)
Tatiana Grokhovskaya, Oxana Karimova, Anna Vymazalová*, František Laufek, Dmitry Chareev and Victor Rassulov
*E-mail: anna.vymazalova@geology.cz
New structure type
Cubic: Fm 
$\overline 3 $m; structure determined
a = 11.4428(9) Å
2.859(10), 2.623(6), 2.557(6), 2.334(11), 2.201(35), 2.021(100), 1.906(8), 1.429(7)
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 5236/1
How to cite: Grokhovskaya, T., Karimova, O., Vymazalová, A., Laufek, F., Chareev, D. and Rassulov, V. (2018) Nipalarsite, IMA 2018-075. CNMNC Newsletter No. 46, December 2018, page 1370; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-077
Krasnoshteinite
Al8[B2O4(OH)2](OH)16Cl4·7H2O
Romanovskiy area (borehole #2001, depth 248 m), Verkhnekamskoe deposit, 30 km S of the city of Berezniki, Perm Krai, NW Urals, Russia
Igor V. Pekov*, Natalia V. Zubkova, Ilya I. Chaikovskiy, Elena P. Chirkova, Dmitry I. Belakovskiy, Vasiliy O. Yapaskurt, Yana V. Bychkova, Inna S. Lykova, Sergey N. Britvin and Dmitry Y. Pushcharovsky
*E-mail: igorpekov@mail.ru
New structure type
Monoclinic: P21; structure determined
a = 8.7398(2), b = 14.4129(3), c = 11.3060(3) Å, β = 106.665(2)°
10.81(41), 8.65(26), 8.38(67), 7.22(100), 5.452(22), 3.720(19), 3.610(21), 3.019(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 number 5239/1
How to cite: Pekov, I.V., Zubkova, N.V., Chaikovskiy, I.I., Chirkova, E.P., Belakovskiy, D.I., Yapaskurt, V.O., Bychkova, Y.V., Lykova, I.S., Britvin, S.N. and Pushcharovsky, D.Y. (2018) Krasnoshteinite, IMA 2018-077. CNMNC Newsletter No. 46, December 2018, page 1370; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-078
Aravaite
Ba2Ca18(SiO4)6(PO4)3(CO3)F3O
Hatrurim Complex, Negev Desert, near Arad city, Israel (31°13′58″N, 35°16′2″E)
Evgeny V. Galuskin*, Biljana Krüger, Irina O. Galuskina, Hannes Krüger and Yevgeny Vapnik
*E-mail: evgeny.galuskin@us.edu.pl
Arctite supergroup
Trigonal: R 
$\overline 3 $m; structure determined
a = 7.1255(1), c = 66.2902(1) Å
3.566(60), 3.075(89), 2.776(86), 2.764(57), 2.157(39), 1.967(50), 1.783(100), 1.498(49)
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 4960/1
How to cite: Galuskin, E.V., Krüger, B., Galuskina, I.O., Krüger, H. and Vapnik, Y. (2018) Aravaite, IMA 2018-078. CNMNC Newsletter No. 46, December 2018, page 1370; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-079
Gasparite-(La)
LaAsO4
Ushkatyn-3 Mn-Fe deposit, close to the town of Zhairem, Karagandy Province, Kazakhstan (48°16′06″N, 70°10′43″E)
Oleg S. Vereshchagin*, Elena N. Perova, Sergey N. Britvin, Aleksey I. Brusnitsyn, Yury S. Polekhovsky, Vladimir V. Shilovskikh and Vladimir N. Bocharov
*E-mail: o.vereshchagin@spbu.ru
Monazite group
Monoclinic: P21/n
a = 6.7646(4), b = 7.2184(9), c = 7.0040(4) Å, β = 104.51(1)°
4.21(22), 3.60(20), 3.39(46), 3.17(100), 2.98(62), 2.02(24), 1.94(25), 1.79(22)
Type material is deposited in the collections of the Mineralogical Museum, Department of Mineralogy, St. Petersburg State University, St. Petersburg, Russia, catalogue number 19692
How to cite: Vereshchagin, O.S., Perova, E.N., Britvin, S.N., Brusnitsyn, A.I., Polekhovsky, Y.S., Shilovskikh, V.V. and Bocharov, V.N. (2018) Gasparite-(La), IMA 2018-079. CNMNC Newsletter No. 46, December 2018, page 1370; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-080
Okieite
Mg3[V10O28]·28H2O
Burro mine, Slick Rock district, San Miguel Co., Colorado, USA (38.04507°N, 108.88972°W); Hummer mine, Paradox Valley, Montrose Co., Colorado, USA (38.22556°N, 108.75028°W)
Anthony R. Kampf*, Barbara P. Nash, Paul M. Adams, Joe Marty and John M. Hughes
*E-mail: akampf@nhm.org
Decavanadate family of minerals
Triclinic: P 
$\overline 1 $; structure determined
a = 10.5566(2), b = 10.7566(2), c = 21.355(1) Å, α = 90.015(6), β = 97.795(7), γ = 104.337(7)°
11.04(17), 9.71(100), 8.32(19), 6.42(12), 3.150(9), 3.024(7), 2.621(10), 2.087(7)
Cotype material is deposited in the mineralogical collections of the Natural History Museum of Los Angeles County, Los Angeles, California, USA, catalogue numbers 66784 and 66785 (Burro mine) and 66786 (Hummer mine)
How to cite: Kampf, A.R., Nash, B.P., Adams, P.M., Marty, J. and Hughes, J.M. (2018) Okieite, IMA 2018-080. CNMNC Newsletter No. 46, December 2018, page 1371; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-081
Prachařite
CaSb5+2(As3+2O5)2O2·10H2O
Plaka Mine No. 80, Plaka, Lavrion District, Attikí Prefecture, Greece
Uwe Kolitsch*, Jiří Sejkora, Dan Topa, Anthony R. Kampf, Jakub Plášil, Branko Rieck and Karl Heinz Fabritz
*E-mail: uwe.kolitsch@nhm-wien.ac.at
New structure type
Trigonal: P 
$\overline 3 $c1; structure determined
a = 13.951(2), c = 19.899(2) Å
9.96(100), 6.05(33), 5.16(30), 3.314(59), 2.994(95), 2.570(31), 1.717(30), 1.593(26)
Cotype material is deposited in the mineralogical collections of the Natural History Museum, Vienna, Austria, catalogue no. O 357, the National Museum, Prague, Czech Republic, catalogue no. P1P 15/2018, and the Natural History Museum of Los Angeles County, USA, catalogue no. 67242
How to cite: Kolitsch, U., Sejkora, J., Topa, D., Kampf, A.R., Plášil, J., Rieck, B. and Fabritz, K.H. (2018) Prachařite, IMA 2018-081. CNMNC Newsletter No. 46, December 2018, page 1371; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-082
Ramaccioniite
Cu4[SeO4](OH)6
Mina San Pedro, Cuesta de Los Llantenes mining district, NW Jagüé, Vinchina Department, La Rioja Province, Argentina (28°20–40′S, 68°30–45′W)
Christian L. Lengauer*, Martin Ende, Dan Topa, Raúl Lira and Werner H. Paar
*E-mail: christian.lengauer@univie.ac.at
The Se analogue of brochantite
Monoclinic: P21/a; structure determined
a = 13.3703(3), b = 9.9547(2), c = 6.0412(3) Å, β = 103.150(3)°
6.511(100), 5.448(21), 3.978(23), 3.952(46), 3.255(85), 3.215(15), 2.724(46), 2.533(37)
Type material is deposited in the mineralogical collections of the Naturhistorisches Museum Wien, Burgring 7, 1010 Wien, Austria, catalogue number O 573
How to cite: Lengauer, C.L., Ende, M., Topa, D., Lira, R. and Paar, W.H. (2018) Ramaccioniite, IMA 2018-082. CNMNC Newsletter No. 46, December 2018, page 1371; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-083
Cuatrocapaite-(NH4)
(NH4)3(NaMg☐)(As2O3)6Cl6·16H2O
Torrecillas mine, Salar Grande, Iquique Province, Tarapacá Region, Chile (20°58′13″S, 70°8′17″W)
Anthony R. Kampf*, Nikita V. Chukanov, Gerhard Möhn, Maurizio Dini, Arturo A. Molina Donoso and Henrik Friis
*E-mail: akampf@nhm.org
The NH4 analogue of cuatrocapaite-(K) (IMA No. 2018-084; this newsletter)
Trigonal: P 
$\overline 3 $m; structure determined
a = 5.2532(2), c = 46.688(2) Å
15.68(100), 5.20(56), 4.518(35), 3.256(42), 3.111(32), 2.625(71), 2.490(41), 2.349(47)
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 66984, 66985 and 66986, and the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5255/1
How to cite: Kampf, A.R., Chukanov, N.V., Möhn, G., Dini, M., Molina Donoso, A.A. and Friis, H. (2018) Cuatrocapaite-(NH4), IMA 2018-083. CNMNC Newsletter No. 46, December 2018, page 1371; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-084
Cuatrocapaite-(K)
K3(NaMg☐)(As2O3)6Cl6·16H2O
Torrecillas mine, Salar Grande, Iquique Province, Tarapacá Region, Chile (20°58′13″S, 70°8′17″W)
Anthony R. Kampf*, Nikita V. Chukanov, Gerhard Möhn, Maurizio Dini, Arturo A. Molina Donoso and Henrik Friis
*E-mail: akampf@nhm.org
The K analogue of cuatrocapaite-(NH4) (IMA No. 2018-083; this newsletter)
Trigonal: P 
$\overline 3 $m; structure determined
a = 5.264(1), c = 46.228(8) Å
15.50(100), 5.13(32), 3.228(33), 3.098(33), 2.621(69), 2.489(25), 2.339(36), 1.835(21)
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 number 66987
How to cite: Kampf, A.R., Chukanov, N.V., Möhn, G., Dini, M., Molina Donoso, A.A. and Friis, H. (2018) Cuatrocapaite-(K), IMA 2018-084. CNMNC Newsletter No. 46, December 2018, page 1372; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-085
Badakhshanite-(Y)
Y2Mn4Al(Si2B7BeO24)
Dorozhniy pegmatite, 45 km E of Murghab, Eastern Pamir, Gorno-Badakhshanskij Autonomous Region, Tajikistan
Leonid A. Pautov*, Mirak A. Mirakov, Fernando Cámara Artigas, Elena Sokolova, Frank C. Hawthorne, Manuchehr A. Schodibekov and Vladimir Y. Karpenko
*E-mail: pla58@mail.ru
Related to perettiite-(Y)
Orthorhombic: Pnma; structure determined
a = 12.852(1), b = 4.5848(5), c = 12.8539(8) Å
9.07(45), 4.59(42), 4.07(39), 3.042(100), 2.637(68), 2.533(60), 2.119(32), 1.828(36)
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 5235/1
How to cite: Pautov, L.A., Mirakov, M.A., Cámara Artigas, F., Sokolova, E., Hawthorne, F.C., Schodibekov, M.A. and Karpenko, V.Y. (2018) Badakhshanite-(Y), IMA 2018-085. CNMNC Newsletter No. 46, December 2018, page 1372; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-087
Ferriakasakaite-(Ce)
CaCeFe3+AlMn2+(Si2O7)(SiO4)O(OH)
Monte Maniglia mine, Bellino, Varaita Valley, Cuneo Province, Piedmont, Italy (44°33′42.5″N, 6°54′59.2″E)
Cristian Biagioni*, Corrado Balestra, Marco Pasero, Marco E. Ciriotti, Paola Bonazzi and Federica Zaccarini
*E-mail: cristian.biagioni@unipi.it
Epidote supergroup
Monoclinic: P21/m; structure determined
a = 8.9071(5), b = 5.7081(4), c = 10.1250(6) Å, β = 114.151(3)°
4.65(mw), 3.519(m), 2.911(vs), 2.841(mw), 2.711(ms), 2.616(ms), 2.404(mw), 2.181(mw)
Type material is deposited in the mineralogical collections of the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (Pisa), Italy, catalogue number 19903
How to cite: Biagioni, C., Balestra, C., Pasero, M., Ciriotti, M.E., Bonazzi, P. and Zaccarini, F. (2018) Ferriakasakaite-(Ce), IMA 2018-087. CNMNC Newsletter No. 46, December 2018, page 1372; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-088
Ekebergite
ThFeNb2O8
“In den Dellen” (= Bimsgrube Zieglowski) pumice quarry, Mendig, Laacher See Komplex, Eifel, Rheinland-Pfalz, Germany (50°23′40″N, 7°17′12″E)
Johan Kjellman*, Cesar Pay Gómez, Peter Lazor, Jaroslaw Majka, Chris Stanley and Jens Najorka
*E-mail: johan.kjellman@em.uu.se
New structure type
Monoclinic: P2/c; structure determined
a = 9.815(2), b = 5.629(2), c = 5.224(4) Å, β = 93.520(9)°
3.619(38), 3.084(100), 2.953(98), 2.817(40), 2.604(43), 1.913(38), 1.845(34), 1.476(35)
Cotype material is deposited in the mineralogical collections of the Swedish Museum of Natural History, P. O. Box 50007, SE-104 05 Stockholm, Sweden, catalogue number NRM 20170122, and the Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom, registration number BM 2017,17
How to cite: Kjellman, J., Pay Gómez, C., Lazor, P., Majka, J., Stanley, C. and Najorka, J. (2018) Ekebergite, IMA 2018-088. CNMNC Newsletter No. 46, December 2018, page 1373; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-089
Espadaite
Na4Ca3Mg2[AsO3(OH)]2[AsO2(OH)2]10·7H2O
Torrecillas mine, Salar Grande, Iquique Province, Tarapacá Region, Chile (20°58′13″S, 70°8′17″W)
Anthony R. Kampf*, Barbara Nash, Maurizio Dini and Arturo A. Molina Donoso
*E-mail: akampf@nhm.org
New structure type
Orthorhombic: Ccca; structure determined
a = 12.365(1), b = 22.181(2), c = 18.329(1) Å
11.10(44), 9.26(100), 4.582(49), 4.118(73), 3.499(80), 3.068(79), 2.766(39), 2.710(39)
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 number 67285
How to cite: Kampf, A.R., Nash, B., Dini, M. and Molina Donoso, A.A. (2018) Espadaite, IMA 2018-089. CNMNC Newsletter No. 46, December 2018, page 1373; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-090
Jeankempite
Ca5(AsO4)2(AsO3OH)2(H2O)7
Mohawk No. 2 mine, Mohawk, Keweenaw Co., Michigan, USA
Travis A. Olds*, Anthony R. Kampf, Fabrice Dal Bo, Peter C. Burns and Xiaofeng Gao
*E-mail: travis.olds@wsu.edu
Structurally related to guérinite
Triclinic: P 
$\overline 1 $; structure determined
a = 6.710(6), b = 14.90(1), c = 15.94(1) Å, α = 73.58(1), β = 81.98(1), γ = 82.75(1)°
9.25(100), 5.39(80), 3.791(41), 3.180(60), 2.954(86), 2.854(46), 1.799(34), 1.628(32)
Type material is deposited in the collections of the A.E. Seaman Mineral Museum, Michigan Tech, 1404 Sharon Ave, Houghton, MI 49931, USA, catalogue number DM 31705, and the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 66799
How to cite: Olds, T.A., Kampf, A.R., Dal Bo, F., Burns, P.C. and Gao, X. (2018) Jeankempite, IMA 2018-090. CNMNC Newsletter No. 46, December 2018, page 1373; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-091
Natroaphthitalite
KNa3(SO4)2
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)
Nadezhda V. Shchipalkina, Igor V. Pekov, Nikita V. Chukanov, Natalia V. Zubkova, Dmitry I. Belakovskiy, Natalia N. Koshlyakova, Sergey N. Britvin, Evgeny G. Sidorov and Svetlana A. Vozchikova
*E-mail: estel58@yandex.ru
Isostructural with aphthitalite and möhnite
Trigonal: P 
$\overline 3 $m1; structure determined
a = 5.6014(3), c = 7.1507(5) Å
4.010(42), 3.574(15), 2.877(77), 2.797(100), 2.007(40), 1.631(12), 1.617(11), 1.400(10)
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 5254/1
How to cite: Shchipalkina, N.V., Pekov, I.V., Chukanov, N.V., Zubkova, N.V., Belakovskiy, D.I., Koshlyakova, N.N., Britvin, S.N., Sidorov, E.G. and Vozchikova, S.A. (2018) Natroaphthitalite, IMA 2018-091. CNMNC Newsletter No. 46, December 2018, page 1373; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2017-057a
Lehmannite
Na18Cu12TiO8(AsO4)8FCl5
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*, Sergey N. Britvin, Natalia N. Koshlyakova, Yury S. Polekhovsky, Jörg Göttlicher, Marina F. Vigasina, Anna G. Turchkova and Evgeny G. Sidorov
*E-mail: igorpekov@mail.ru
Closely related to of arsmirandite
Monoclinic: C2/m; structure determined
a = 10.824(1), b = 21.108 (2), c = 11.856(1) Å, β = 117.195(8)°
10.52(65), 8.74(100), 5.419(36), 5.273(74), 3.722(37), 2.636(43), 2.573(98), 1.889(33)
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5065/1
How to cite: Pekov, I.V., Britvin, S.N., Koshlyakova, N.N., Polekhovsky, Y.S., Göttlicher, J., Vigasina, M.F., Turchkova, A.G. and Sidorov, E.G. (2018) Lehmannite, IMA 2017-057a. CNMNC Newsletter No. 46, December 2018, page 1374; Mineralogical Magazine, 82, 1369–1379.
NEW MINERAL PROPOSALS APPROVED IN NOVEMBER 2018
IMA No. 2018-092
Lumsdenite
NaCa3Mg2(As3+V4+2V5+10As5+6O51)·45H2O
Packrat mine, Lumsden Canyon, near Gateway, Mesa Co., Colorado, USA (38°38′51.28″N, 109°02′49.77″W)
Anthony R. Kampf*, John M. Hughes, Barbara P. Nash, Joe Marty and Timothy P. Rose
*E-mail: akampf@nhm.org
Vanarsite mineral family
Triclinic: P 
$\overline 1 $; structure determined
a = 10.3490(5), b = 17.6263(9), c = 23.256(2) Å, α = 82.208(6), β = 88.351(6), γ = 81.702(6)°
17.30(44), 14.86(80), 13.04(25), 10.22(32), 9.35(100), 8.34(32), 2.809(23), 2.686(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 number 66787
How to cite: Kampf, A.R., Hughes, J.M., Nash, B.P., Marty, J. and Rose, T.P. (2018) Lumsdenite, IMA 2018-092. CNMNC Newsletter No. 46, December 2018, page 1374; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-094
Armellinoite-(Ce)
Ca4Ce4+(AsO4)4·H2O
In the dumps of the Montaldo di Mondovì mine, Frazze Rocconi, Borgata Oberti, Montaldo di Mondovì (CN), Corsaglia Valley, Piedmont, Italy (44°19′28″N, 7°51′8″E)
Fernando Cámara*, Marco E. Ciriotti, Uwe Kolitsch, Ferdinando Bosi, Erica Bittarello, Piero Brizio, Pietro Vignola and Günter Blass
*E-mail: fernando.camara@unimi.it
Isostructural with pottsite
Tetragonal: I41/a; structure determined
a = 10.749(2), c = 12.030(2) Å
7.983(36), 4.443(23), 2.957(100), 2.398(14), 1.875(22), 1.728(19), 1.612(13), 1.475(26)
Type material is deposited in the mineralogical collections of the Museo delle Collezioni di Mineralogia, Gemmologia, Petrologia e Giacimentologia, Dipartimento di Scienze della Terra “A. Desio”, Università di Milano, catalogue number MCMGPG-H2018-003
How to cite: Cámara, F., Ciriotti, M.E., Kolitsch, U., Bosi, F., Bittarello, E., Brizio, P., Vignola, P. and Blass, G. (2018) Armellinoite-(Ce), IMA 2018-094. CNMNC Newsletter No. 46, December 2018, page 1374; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-095
Akopovaite
Al4Li2(OH)12(CO3)(H2O)3
Ore body #2 on the right side of the Asan-Usan glacier, Karasu-Karavshinskoye Sn-deposit, northern slope of the Turkestan Ridge, Kyrgyzstan (39.5893°N, 70.2489°E)
Vladimir Y. Karpenko*, Leonid A. Pautov, Elena S. Zhitova, Atali A. Agakhanov, Maria G. Krzhizhanovskaya, Oleg I. Siidra and Victor A. Rassulov
*E-mail: mineralab@mail.ru
Hydrotalcite supergroup
Monoclinic: C2/m; structure determined
a = 5.0953(6), b = 8.877(1), c = 7.806(1) Å, β = 102.572(6)°
7.66(100), 4.397(27), 3.821(45), 2.532(10), 2.488(27), 2.227(16), 1.903(18), 1.471(10)
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, catalogue # 5200/1
How to cite: Karpenko, V.Y., Pautov, L.A., Zhitova, E.S., Agakhanov, A.A., Krzhizhanovskaya, M.G., Siidra, O.I. and Rassulov, V.A. (2018) Akopovaite, IMA 2018-095. CNMNC Newsletter No. 46, December 2018, page 1375; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-096
Jahnsite-(MnMnFe)
Mn2+Mn2+Fe2+2Fe3+2(PO4)4(OH)2·8H2O
Malpensata granitic pegmatite dike, Piona pegmatite swarm, Colico (LC), Lombardy, Italy (46°07′20″N, 9°19′33″E)
Pietro Vignola*, Frédéric Hatert, Nicola Rotiroti, Fabrizio Nestola, Andrea Risplendente and Francesco Vanini
*E-mail: pietro.vignola@idpa.cnr.it
Jahnsite group
Monoclinic: P2/a; structure determined
a = 14.6983(6), b = 7.1477(2), c = 10.0209(4) Å, β = 107.128(4)°
9.221(89), 4.932(78), 4.651(78), 3.971(70), 3.504(63), 3.295(46), 2.840(82), 2.590(100)
Type material is deposited in the mineralogical collections of the Laboratoire de Minéralogie, University of Liege, Bâtiment B18, Sart Tilman, B-4000 Liège, Belgium, catalogue no. 21168
How to cite: Vignola, P., Hatert, F., Rotiroti, N., Nestola, F., Risplendente, A. and Vanini, F. (2018) Jahnsite-(MnMnFe), IMA 2018-096. CNMNC Newsletter No. 46, December 2018, page 1375; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-098
Gladkovskyite
MnTlAs3S6
Vorontsovskoe gold deposit, ca. 13 km S of the city of Krasnotur'insk, Sverdlovskaya Oblast’, Northern Urals, Russia
Anatoly V. Kasatkin*, Jakub Plášil, Emil Makovicky, Radek Škoda, Atali A. Agakhanov, Sergey Y. Stepanov and Fabrizio Nestola
*E-mail: anatoly.kasatkin@gmail.com
New structure type
Trigonal: R31c; structure determined
a = 9.6392(2), c = 6.456(1) Å
5.11(80), 4.83(70), 3.49(50), 3.23(20), 2.86(100), 2.68(30), 2.55(60), 1.83(20)
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5248/1
How to cite: Kasatkin, A.V., Plášil, J., Makovicky, E., Škoda, R., Agakhanov, A.A., Stepanov, S.Y. and Nestola, F. (2018) Gladkovskyite, IMA 2018-098. CNMNC Newsletter No. 46, December 2018, page 1375; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-099
Escheite
Ca2NaMnTi5[Si12O34]O2(OH)3·12H2O
Ariskop quarry, Aris phonolite, Windhoek district, Namibia (22°46′6″S, 17°7′51″E)
Fernando Cámara*, Fabrizio Nestola, Marco E. Ciriotti, Uwe Kolitsch, Marco Merlini, Günter Blass and Ralph Wartha
*E-mail: fernando.camara@unimi.it
Zorite group
Orthorhombic: Bbm2; structure determined
a = 14.2465(2), b = 22.9871(4), c = 13.7304(2) Å
6.873(30), 6.823(16), 5.227(20), 3.411(13), 3.056(22), 3.034(17), 2.950(16), 2.559(20)
Type material is deposited in the mineralogical collections of the Museo delle Collezioni di Mineralogia, Gemmologia, Petrologia e Giacimentologia, Dipartimento di Scienze della Terra “A. Desio”, Università di Milano, catalogue number MCMGPG-H2018-002
How to cite: Cámara, F., Nestola, F., Ciriotti, M.E., Kolitsch, U., Merlini, M., Blass, G. and Wartha, R. (2018) Escheite, IMA 2018-099. CNMNC Newsletter No. 46, December 2018, page 1375; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-100
Uroxite
[(UO2)2(C2O4)(OH)2(H2O)2]·H2O
Burro mine, Slick Rock district, San Miguel Co., Colorado, USA (38°2′42″N, 108°53′23″W); Markey mine, Red Canyon, White Canyon mining district, San Juan Co., Utah, USA (37°32′57″N, 110°18′08″W)
Anthony R. Kampf*, Jakub Plášil, Barbara P. Nash, Ivan Němec and Joe Marty
*E-mail: akampf@nhm.org
Oxalate mineral group
Monoclinic: P21/c; structure determined
a = 5.5698(2), b = 15.2877(6), c = 13.3724(9) Å, β = 94.015(7)°
10.05(38), 5.00(100), 4.75(23), 4.43(51), 3.567(33), 3.341(29), 3.271(20), 2.623(28)
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 73514 and 73515 (Burro mine), 73516 and 73517 (Markey mine)
How to cite: Kampf, A.R., Plášil, J., Nash, B.P., Němec, I. and Marty, J. (2018) Uroxite, IMA 2018-100. CNMNC Newsletter No. 46, December 2018, page 1376; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-101
Lussierite
Na10[(UO2)(SO4)4](SO4)2(H2O)3
Blue Lizard mine, Red Canyon, White Canyon mining district, San Juan Co., Utah, USA (37°33′26″N, 110°17′44″W)
Anthony R. Kampf*, Travis Olds, Jakub Plášil, Barbara P. Nash and Joe Marty
*E-mail: akampf@nhm.org
New structure type
Monoclinic: Cc; structure determined
a = 9.3134(4), b = 28.750(1), c = 9.6346(7) Å, β = 93.442(7)°
8.00(63), 6.69(95), 5.75(68), 4.814(100), 3.461(83), 2.955(81), 2.882(74), 2.799(58)
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 73518 (holotype), 73519 and 73520 (cotype)
How to cite: Kampf, A.R., Olds, T., Plášil, J., Nash, B.P. and Marty, J. (2018) Lussierite, IMA 2018-101. CNMNC Newsletter No. 46, December 2018, page 1376; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-102
Asimowite
Fe2SiO4
Suizhou L6 chondrite, fall in Dayanpo, 12.5 km SE of Suizhou, Hubei province, China (holotype); Quebrada Chimborazo (QC) 001 CB3.0 chondrite, found in Antofagasta, Chile (cotype)
Luca Bindi*, Frank E. Brenker, Fabrizio Nestola, Tamara E. Koch, David J. Prior, Kat Lilly, Alexander N. Krot, Martin Bizzarro and Xiande Xie
*E-mail: luca.bindi@unifi.it
The Fe analogue of wadsleyite
Orthorhombic: Imma; structure determined
a = 5.7485(4), b = 11.5761(9), c = 8.3630(7) Å
2.708(50), 2.650(70), 2.506(40), 2.471(100), 2.220(40), 2.088(50), 2.036(90), 1.460(90)
Type material is deposited in the mineralogical collections of the Museo di Storia Naturale, Università di Firenze, Via La Pira 4, I-50121, Firenze, Italy, catalogue number 3238/I (holotype), and the Goethe University Frankfurt, Germany (cotype)
How to cite: Bindi, L., Brenker, F.E., Nestola, F., Koch, T.E., Prior, D.J., Lilly, K., Krot A.N., Bizzarro, M. and Xie, X. (2018) Asimowite, IMA 2018-102. CNMNC Newsletter No. 46, December 2018, page 1376; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-105
Amamoorite
CaMn2+2Mn3+(Si2O7)O(OH)
Amamoor mine, near Gympie, Southern Queensland, Australia
Roger Townend, Ian E. Grey*, W. Gus Mumme, Anthony R. Kampf, Malcolm Roberts, Robert W. Gable and Rodney Dale
*E-mail: ian.grey@csiro.au
The Mn2+-Mn3+-dominant analogue of ilvaite
Monoclinic: P21/a; structure determined
a = 13.0981(2), b = 8.8897(2), c = 5.9029(1) Å, β = 91.697(2)°
7.349(76), 2.893(100), 2.827(48), 2.754(50), 2.725(50), 2.699(66), 2.157(33), 2.100(35)
Type material is deposited in the mineralogical collections of the Western Australian Museum, catalogue number WAM M8.2018, and the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 66937
How to cite: Townend, R., Grey, I.E., Mumme, W.G., Kampf, A.R., Roberts, M., Gable, R.W. and Dale, R. (2018) Amamoorite, IMA 2018-105. CNMNC Newsletter No. 46, December 2018, page 1376; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-106
Ferriperbøeite-(La)
(CaLa3)(Fe3+Al2Fe2+)[Si2O7][SiO4]3O(OH)2
Mochalin Log REE deposit, 14 km N of the city of Kyshtym, Chelyabinsk Oblast’, South Urals, Russia (55°48′42″N, 60°33′46″E)
Anatoly V. Kasatkin*, Igor V. Pekov, Natalia V. Zubkova, Nikita V. Chukanov, Radek Škoda, Yury S. Polekhovsky, Dmitriy I. Belakovskiy, Atali A. Agakhanov, Aleksey M. Kuznetsov and Dmitry Y. Pushcharovsky
*E-mail: anatoly.kasatkin@gmail.com
Gatelite supergroup
Monoclinic: P21/m; structure determined
a = 8.9458(2), b = 5.7297(1), c = 17.6192(3) Å, β = 115.950(2)°
15.81(72), 4.700(43), 3.521(53), 3.003(100), 2.868(39), 2.775(28), 2.687(33), 2.636(60)
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 5253/1
How to cite: Kasatkin, A.V., Pekov, I.V., Zubkova, N.V., Chukanov, N.V., Škoda, R., Polekhovsky, Y.S., Belakovskiy, D.I., Agakhanov, A.A., Kuznetsov, A.M. and Pushcharovsky, D.Y. (2018) Ferriperbøeite-(La), IMA 2018-106. CNMNC Newsletter No. 46, December 2018, page 1377; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-107
Radekškodaite-(La)
(CaLa5)(Al4Fe2+)[Si2O7][SiO4]5O(OH)3
Mochalin Log REE deposit, 14 km N of the city of Kyshtym, Chelyabinsk Oblast’, South Urals, Russia (55°48′42″N, 60°33′46″E)
Anatoly V. Kasatkin*, Igor V. Pekov, Natalia V. Zubkova, Nikita V. Chukanov, Yury S. Polekhovsky, Dmitriy I. Belakovskiy, Dmitriy A. Ksenofontov, Atali A. Agakhanov, Aleksey M. Kuznetsov and Dmitry Y. Pushcharovsky
*E-mail: anatoly.kasatkin@gmail.com
New structure type
Monoclinic: P21/m; structure determined
a = 8.9604(3), b = 5.7268(2), c = 25.113(1) Å, β = 116.627(5)°
22.1(52), 8.01(32), 4.661(65), 3.522(78), 3.038(55), 3.010(45), 2.866(44), 2.640(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 5267/1
How to cite: Kasatkin, A.V., Pekov, I.V., Zubkova, N.V., Chukanov, N.V., Polekhovsky, Y.S., Belakovskiy, D.I., Ksenofontov, D.A., Agakhanov, A.A., Kuznetsov, A.M. and Pushcharovsky, D.Y. (2018) Radekškodaite-(La), IMA 2018-107. CNMNC Newsletter No. 46, December 2018, page 1377; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2017-009b
Laverovite
K2NaMn7Zr2(Si4O12)2O2(OH)4F
Desourdy quarry, which later became part of the Demix quarry, which in turn was subsumed by the Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Elena Sokolova*, Maxwell C. Day, Frank C. Hawthorne, Anatoly V. Kasatkin, Robert A. Downs, László Horváth and Elsa Pfenninger-Horváth
*E-mail: elena_sokolova@umanitoba.ca
Astrophyllite supergroup
Triclinic: P 
$\overline 1 $; structure determined
a = 5.4329(1), b = 11.9232(3), c = 11.7491(3) Å, α = 112.905(2), β = 94.696(1), γ = 103.178(1)°
10.625(100), 3.542(92), 2.788(97), 2.680(68), 2.589(100), 2.504(44), 1.776(39), 1.589(50)
Type material is deposited in the mineralogical collections of Royal Ontario Museum, Toronto, Ontario, Canada, accession number M57542
How to cite: Sokolova, E., Day, M.C., Hawthorne, F.C., Kasatkin, A.V., Downs, R.A., Horváth, L. and Pfenninger-Horváth, E. (2018) Laverovite, IMA 2017-009b. CNMNC Newsletter No. 46, December 2018, page 1377; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2017-032a
Tschaunerite
(Fe2+)(Fe2+Ti4+)O4
Shergotty Martian meteorite, fall at Shergotty, Gaya district, Bihar, India
Chi Ma* and Vitali Prakapenka
*E-mail: chi@gps.caltech.edu
A polymorph of ulvöspinel
Orthorhombic: Cmcm
a = 2.71(2), b = 9.216(8), c = 9.103(4) Å
2.534(100), 2.498(25), 2.304(27), 2.256(31), 1.983(63), 1.855(33), 1.49(37), 1.194(19)
Type material is deposited in the E. Stolper Martian Meteorite Collection of the Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125, USA, thin section Shergotty-1
How to cite: Ma, C. and Prakapenka, V. (2018) Tschaunerite, IMA 2017-032a. CNMNC Newsletter No. 46, December 2018, page 1378; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2017-041a
Feiite
Fe2+2(Fe2+Ti4+)O5
Shergotty Martian meteorite, fall at Shergotty, Gaya district, Bihar, India
Chi Ma* and Oliver Tschauner
*E-mail: chi@gps.caltech.edu
Isostructural with synthetic Fe4O5
Orthorhombic: Cmcm
a = 2.90(3), b = 10.25(20), c = 12.50(8) Å
2.668(100), 2.562(29), 2.548(34), 2.177(37), 2.084(65), 1.953(21), 1.669(26), 1.499(28)
Type material is deposited in the E. Stolper Martian Meteorite Collection of the Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125, USA, thin section Shergotty-1
How to cite: Ma, C. and Tschauner, O. (2018) Feiite, IMA 2017-041a. CNMNC Newsletter No. 46, December 2018, page 1378; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2017-042a
Liuite
FeTiO3
Shergotty Martian meteorite, fall at Shergotty, Gaya district, Bihar, India
Chi Ma* and Oliver Tschauner
*E-mail: chi@gps.caltech.edu
A polymorph of ilmenite
Orthorhombic: Pnma
a = 5.32(1), b = 6.840(5), c = 5.037(3) Å
3.225(20), 2.660(23), 2.518(25), 2.498(100), 1.829(27), 1.710(19), 1.625(22), 1.450(37)
Type material is deposited in the E. Stolper Martian Meteorite Collection of the Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125, USA, thin section Shergotty-1
How to cite: Ma, C. and Tschauner, O. (2018) Liuite, IMA 2017-042a. CNMNC Newsletter No. 46, December 2018, page 1378; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2017-087a
Ferri-mottanaite-(Ce)
Ca4Ce2Fe3+(Be1.5☐0.5)[Si4B4O22]O2
Vico volcanic complex, Tre Croci, close to Vetralla (Viterbo), Latium, Italy
Roberta Oberti*, Antonio Langone, Massimo Boiocchi, Frank C. Hawthorne and Ezio Bernabè
*E-mail: oberti@crystal.unipv.it
Hellandite group
Monoclinic: P2/a; structure determined
a = 19.0548(9), b = 4.7468(2), c = 10.2560(5) Å, β = 110.906(2)°
4.745(33), 3.453(36), 3.246(43), 3.086(44), 2.919(44), 2.857(50), 2.648(100), 1.904(48)
Type material is deposited in the collections of the Museo di Mineralogia, Dipartimento di Scienze della Terra e dell'Ambiente, Università di Pavia, catalogue number 2018-02
How to cite: Oberti, R., Langone, A., Boiocchi, M., Hawthorne, F.C. and Bernabè, E. (2018) Ferri-mottanaite-(Ce), IMA 2017-087a. CNMNC Newsletter No. 46, December 2018, page 1378; Mineralogical Magazine, 82, 1369–1379.
IMA No. 2018-032a
Natrowalentaite
[Fe3+0.5Na0.5(H2O)6][NaAs3+2(Fe3+2.33W6+0.67)(PO4)2O7]
Griffins Find gold deposit, ca. 15 km NW of Lake Grace, Australia
Ian E. Grey*, W. Gus Mumme, Anthony R. Kampf and Colin M. MacRae
*E-mail: ian.grey@csiro.au
Chemically and structurally related to walentaite
Orthorhombic: Imma; structure determined
a = 25.770(3), b = 7.3250(8), c = 10.522(1) Å
12.95(100), 9.72(9), 6.72(14), 4.41(10), 3.020(27), 2.940(15), 2.759(11), 1.784(10)
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 number 66703
How to cite: Grey, I.E., Mumme, W.G., Kampf, A.R. and MacRae, C.M. (2018) Natrowalentaite, IMA 2018-032a. CNMNC Newsletter No. 46, December 2018, page 1378; Mineralogical Magazine, 82, 1369–1379.
REVISED CHEMICAL FORMULAE
A paper on the mineral vigrishinite has been recently published [Mineralogical Magazine, 82 (2018), 787–807] in which the ideal chemical formula of the mineral is given as NaZnTi4(Si2O7)2O3(OH)(H2O)4, with sodium as an essential constituent. These data were examined carefully by the CNMNC officers and were considered reliable. Accordingly it was agreed to modify the formula of vigrishinite in the official IMA List of Minerals.
A paper on the mineral cafarsite has been recently published [European Journal of Mineralogy, 30 (2018), 859–868] in which the ideal chemical formula of the mineral is revised as (Ca,Na,☐)19Ti8Fe3+4Fe2+4(AsO3)28F, with no water molecules or hydroxyls, and with fluorine as an essential constituent. These data were examined carefully by the CNMNC officers and were considered reliable. Accordingly it was agreed to modify the formula of cafarsite in the official IMA List of Minerals.
