IMA no. 2023-081c

• Wangxibinite

• TiFe

• Wxb

• Chromite deposit #31 (sample #M 11843), Luobusa ophiolite, Yarlung Zangbu suture, southern Tibet, China (29°13^′52^′′ N, 92°11^′25^′′ E)

• Fahui Xiong, Enrico Mugnaioli, Xiangzhen Xu, Jingsui Yang, Richard Wirth, Edward S. Grew^*, and Martin G. Yates

• ^* E-mail: esgrew@maine.edu

• Known synthetic analogue; CsCl-type structure

• Cubic: Im$\stackrel{\mathrm{‾}}{\mathrm{3}}m$; structure determined

• a=3.162(2) Å

• 2.236(100), 1.581(15), 1.291(28), 1.118(8), 1.000(13), 0.913(4)

• Type material is deposited in the collections of the Geological Museum of China, 15 Yangrou Hutong, Xisi, West District, Beijing 100034, People's Republic of China, catalogue number M11843

• How to cite: Xiong, F., Mugnaioli, E., Xu, X., Yang, J., Wirth, R., Grew, E. S., and Yates, M. G.: Wangxibinite, IMA 2023-081b, in: CNMNC Newsletter 87, Eur. J. Mineral., 37, https://doi.org/10.5194/ejm-37-695-2025, 2025.

IMA no. 2025-028

• Bonaccorsiite

• KK₂Na₃(Al₆Si₃₆)O₈₄

• Bcs

• As inclusion within garnets, Pfaffenberg, Waldheim, Saxony, Germany (51°04^′06.91^′′ N, 13°00^′54.72^′′ E)

• Enrico Mugnaioli^*, Sofia Lorenzon, Silvio Ferrero, Roberto Borriello, Alessia Borghini, Cristian Biagioni, Rico Fuchs, Richard Wirth, Anja Schreiber, and Edward S. Grew

• ^* E-mail: enrico.mugnaioli@unipi.it

• New structure type

• Hexagonal: P6/mmc; structure determined

• a=17.023(5), c=15.580(7) Å

• 14.742(100), 4.256(93), 4.156(60), 3.895(39), 3.735(26), 3.192(26), 3.151(42), 2.783(27)

• Type material is deposited in the collections of the Museo di Storia Naturale, University of Pisa, Via Roma 79, Calci (PI), Italy, catalogue number 20082

• How to cite: Mugnaioli, E., Lorenzon, S., Ferrero, S., Borriello, R., Borghini, A., Biagioni, C., Fuchs, R., Wirth, R., Schreiber, A., and Grew, E. S.: Bonaccorsiite, IMA 2025-028, in: CNMNC Newsletter 87, Eur. J. Mineral., 37, https://doi.org/10.5194/ejm-37-695-2025, 2025.

IMA no. 2025-034

• Hopmannite

• Ba₂(Ti₅Fe)O₁₃

• Hpn

• In a xenolith, Bellerberg volcano, Seekante district, Eastern Eifel region, Germany (50°20^′21^′′ N, 7°14^′37^′′ E)

• Rafał Juroszek^*, Biljana Krüger, Georgia Cametti, Beata Marciniak-Maliszewska, and Christof Schäfer

• ^* E-mail: rafal.juroszek@us.edu.pl

• Isostructural with nixonite and jeppeite

• Monoclinic: C2/m; structure determined

• a= 15.357(2), b= 3.8500(7), c= 9.129(2) Å, β= 99.03(1)°

• 3.063(100), 2.988(99), 2.957(60), 2.821(54), 2.820(50), 2.087(62), 2.070(53), 1.925(72)

• Type material is deposited in the collections of the Natural History Museum Mainz, State Collection of Natural History of Rhineland-Palatinate, Reichklarastr. 10, 55116 Mainz, Germany, catalogue number M_2025/862

• How to cite: Juroszek, R., Krüger, B., Cametti, G., Marciniak-Maliszewska, B., and Schäfer, C.: Hopmannite, IMA 2025-034, in: CNMNC Newsletter 87, Eur. J. Mineral., 37, https://doi.org/10.5194/ejm-37-695-2025, 2025.

IMA no. 2025-036

• Abelloemringerite

• Cu₂Pb₂Mn³⁺Mn${}_{\mathrm{3}}^{\mathrm{4}+}$O₁₁(OH)(H₂O)₂ ⋅ H₂O

• Abem

• Renéville area, approximately 80 km northwest of the city of Brazzaville, Kindanba district, Pool department, Republic of the Congo (3°59^′31^′′ S, 14°49^′50^′′ E)

• Jordi Ibáñez-Insa^*, Joan Rosell-Riba, Cristian Biagioni, Fabrizio Nestola, Daniel del Pozo-Bueno, Sergi Plana-Ruiz, Xavier Llovet, Catalin Popescu, Sònia Estradé, Francesca Peiró, and Marc Campeny

• ^* E-mail: jibanez@geo3bcn.csic.es

• New structure type

• Orthorhombic: Imma; structure determined

• a= 27.7635(7), b= 5.5552(1), c= 8.4078(2) Å

• 13.87(100), 6.935(49), 4.636(43), 3.857(35), 3.592(41), 2.870(37), 2.778(69), 2.680(47)

• Type material is deposited in the collections of the Natural Science Museum of Barcelona (MCNB), Passeig Picasso s/n, 08003 Barcelona, Spain, catalogue number MGB-40200

• How to cite: Ibáñez-Insa, J., Rosell-Riba, J., Biagioni, C., Nestola, F., del Pozo-Bueno, D., Plana-Ruiz, S., Llovet, X., Popescu, C., Estradé, S., Peiró, F., and Campeny, M.: Abelloemringerite, IMA 2025-036, in: CNMNC Newsletter 87, Eur. J. Mineral., 37, https://doi.org/10.5194/ejm-37-695-2025, 2025.

IMA no. 2024-023a

• Shojiite

• Na(NaMg)Mg₅Si₈O₂₂(OH)₂

• Shj

• Mamushinosawa Creek, a tributary of the Inuushibetsu River, Horokanai ophiolite, Hokkaido, Japan (44°05^′12.45^′′ N, 142°12^′22.32^′′ E)

• Maki Hamada^*, Terumi Ejima, Noriko Hasebe, Tomoyuki Mizukami, Akihiro Ishii, Kiwamu Okamoto, Mariko Nagashima, Akihiro Tamura, and Tomoaki Morishita

• ^* E-mail: hamada-m@se.kanazawa-u.ac.jp

• Amphibole supergroup

• Monoclinic: C2/m; structure determined

• a= 9.7912(5), b= 17.9438(9), c= 5.2721(3) Å, β= 103.548(5)°

• 8.42(39), 3.268(39), 3.129(100), 2.711(48), 2.809(28), 2.168(24), 1.896(20), 1.657(30)

• Type material is deposited in the collections of the National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan, specimen number NSM-M52045 (holotype), and the Shibetsu City Museum, 2554 Nishishibetsu-cho, Shibetsu, Hokkaido 095-0056, Japan, specimen number 13225 (cotype)

• How to cite: Hamada, M., Ejima, T., Hasebe, N., Mizukami, T., Ishii, A., Okamoto, K., Nagashima, M., Tamura, A., and Morishita, T.: Shojiite, IMA 2024-023a, in: CNMNC Newsletter 87, Eur. J. Mineral., 37, https://doi.org/10.5194/ejm-37-695-2025, 2025.

IMA no. 2024-093a

• Hinokageite

• MnMg(SiO₄)

• Hkg

• Shimozuru mine, Hinokage Town, Miyazaki Prefecture, Kyushu, Japan (32°44^′16^′′ N, 131°24^′44^′′ E)

• Daisuke Nishio-Hamane^*, Mariko Nagashima, Yuki Mori, Masayuki Ohnishi, Takahiro Tanaka, Hiroyuki Imai, and Tatsumi Fukumoto

• ^* E-mail: hamane@issp.u-tokyo.ac.jp

• Olivine group

• Orthorhombic: Pbnm; structure determined

• a= 4.8219(2), b= 10.5480(5), c= 6.1655(2) Å

• 3.573(87), 3.082(29), 2.840(86), 2.579(100), 2.522(82), 1.787(64), 1.783(28), 1.539(25)

• Type material is deposited in the collections of the National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Japan specimen number NSM-M53011

• How to cite: Nishio-Hamane, D., Nagashima, M., Mori, Y., Ohnishi, M., Tanaka, T., Imai, H., and Fukumoto, T.: Hinokageite, IMA 2024-093a, in: CNMNC Newsletter 87, Eur. J. Mineral., 37, https://doi.org/10.5194/ejm-37-695-2025, 2025.

IMA no. 2025-037

• Clinochalcomenite

• CuSeO₃(H₂O)₂

• Cccm

• Wangba town, Kang County, Gansu Province, China (33° 20^′47.6^′′ N, 105°41^′47.6^′′ E – holotype); Suncup No. 2 mine, Slick Rock district, San Miguel Co., Colorado, USA (37°56^′45^′′ N, 108°47^′3^′′ W – cotype 1); Burro mine, Slick Rock district, San Miguel Co., Colorado, USA (38°02^′42^′′ N, 108°53^′23^′′ W – cotype 2)

• Guang Fan^*, Ting Li, Xiangkun Ge, Mike S. Rumsey${}^{**}$, Stuart J. Mills, John Spratt, Liumin Deng, Tao Wang, Zongyao Tai, Jens Najorka, Anthony R. Kampf, Travis A. Olds, Chi Ma, Timothy P. Rose, and Joe Marty

• ^* E-mail: fanguang2008@163.com

• ${}^{**}$ E-mail: m.rumsey@nhm.ac.uk

• A dimorph of chalcomenite

• Monoclinic: P2₁/n; structure determined

• a= 6.2736(3), b= 8.5930(4), c= 8.1633(4) Å, β= 97.267(2)°

• 5.918(100), 4.105(28), 3.814(22), 3.676(48), 2.926(27), 2.584(75), 2.376(22), 1.564(32)

• Type material is deposited in the collections of the Geological Museum of China, No. 16, Yangrou Hutong, Xisi, Beijing 100031, People's Republic of China, catalogue number GMCTM2025006 (holotype); the Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom, catalogue number BM 2016,60 (cotype 1); and the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 76454 (cotype 2)

• How to cite: Fan, G., Li, T., Ge, X., Rumsey, M. S., Mills, S. J., Spratt, J., Deng, L., Wang, T., Tai, Z., Najorka, J., Kampf, A. R., Olds, T. A., Ma, C., Rose, T. P., and Marty, J.: Clinochalcomenite, IMA 2025-037, in: CNMNC Newsletter 87, Eur. J. Mineral., 37, https://doi.org/10.5194/ejm-37-695-2025, 2025.

IMA no. 2025-040

• Yunhaoite

• K₂(MoO₄)

• Yun

• Freedom #2 mine, Marysvale mining district, Piute Co., Utah, USA (38°29^′43^′′ N, 112°12^′55^′′ W)

• Hexiong Yang^*, Xiangping Gu, Anthony R. Kampf, Ronald B. Gibbs, and Robert T. Downs

• ^* E-mail: hyang@arizona.edu

• Known synthetic analogue

• Monoclinic: C2/m; structure determined

• a= 12.3452(10), b= 6.0892(5), c= 7.5380(6) Å, β= 115.751(4)°

• 5.672(29), 4.706(59), 3.405(61), 3.176(100), 3.050(75), 2.932(46), 2.272(84), 1.982(42)

• Type material is deposited in the collections of the University of Arizona Alfie Norville Gem & Mineral Museum, 115 N Church Ave Ste 121, Tucson, AZ 85701, USA, catalogue no. 22745 (holotype), and the RRUFF Project, deposition no. R250015 (cotype)

• How to cite: Yang, H., Gu, X., Kampf, A. R., Gibbs, R. B., and Downs, R. T.: Yunhaoite, IMA 2025-040, in: CNMNC Newsletter 87, Eur. J. Mineral., 37, https://doi.org/10.5194/ejm-37-695-2025, 2025.

IMA no. 2025-041

• Hubbardite

• Mg(H₂O)₆[(UO₂)₂O(OH)(SO₄)]₂ ⋅ 8H₂O

• Hbb

• Hubbard Homestead mine, near Gateway, Mesa Co., Colorado, USA (38°38^′00^′′ N, 109°01^′01^′′ W)

• Anthony R. Kampf^*, Jakub Plášil, Travis A. Olds, Christopher Emproto, Chi Ma, Jiří Sejkora, Paul M. Adams, and Joe Marty

• ^* E-mail: akampf@nhm.org

• Chemically and structurally related to marécottite

• Orthorhombic: Fddd; structure determined

• a= 8.870(2), b= 34.183(7), c= 39.377(9) Å

• 9.659(100), 4.851(21), 4.215(15), 3.448(48), 3.078(24), 2.735(11), 2.152(12), 1.744(14)

• Type material is deposited in the collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 76119 (holotype), 76120 and 76121 (cotype)

• How to cite: Kampf, A. R., Plášil, J., Olds, T. A., Emproto, C., Ma, C., Sejkora, J., Adams, P. M., and Marty, J.: Hubbardite, IMA 2025-041, in: CNMNC Newsletter 87, Eur. J. Mineral., 37, https://doi.org/10.5194/ejm-37-695-2025, 2025.

IMA no. 2025-047

• Liddicoatite

• Ca(Li₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)

• Ld

• Dolní Rožínka pegmatite, Žďár nad Sázavou District, Vysočina Region, Czech Republic (49°28^′34^′′ N, 16°12^′07^′′ E)

• Lenka Skřápková^*, Jan Cempírek, Radek Škoda, Markéta Holá, František Novotný, and Ferdinando Bosi

• ^* E-mail: lenkas@sci.muni.cz

• Tourmaline supergroup

• Trigonal: R3m; structure determined

• a= 15.8277(3), c= 7.0985(1) Å

• 4.931(33), 4.185(61), 3.957(81), 3.436(43), 2.928(89), 2.557(100), 2.023(43), 1.902(43)

• Type material is deposited in the collections of the Department of Mineralogy and Petrography, Moravian Museum, Zelný trh 6, 659 37 Brno, Czech Republic, specimen numbers A11696 and A11697

• How to cite: Skřápková, L., Cempírek, J., Škoda, R., Holá, M., Novotný, F., and Bosi, F.: Liddicoatite, IMA 2025-047, in: CNMNC Newsletter 87, Eur. J. Mineral., 37, https://doi.org/10.5194/ejm-37-695-2025, 2025.

3.1 Jeppeite group

(Rafał Juroszek, Biljana Krüger, and Christof Schäfer)

The jeppeite group has been established. It includes the minerals jeppeite, K₂Ti₆O₁₃, and nixonite, Na₂Ti₆O₁₃, and the newly approved mineral hopmannite, Ba₂(Ti₅Fe)O₁₃ (see this newsletter).

3.2 Babingtonite group

(Frank C. Hawthorne and Maxwell C. Day)

The babingtonite group has been established. It includes the minerals babingtonite, Ca₂Fe²⁺Fe³⁺[Si₅O₁₄(OH)]; manganbabingtonite, Ca₂Mn²⁺Fe³⁺[Si₅O₁₄(OH)]; and scandiobabingtonite, Ca₂Fe²⁺Sc[Si₅O₁₄(OH)].

3.3 Beryl supergroup

(Peter Bačík, Jan Cempírek, Milan Novák, Jana Fridrichová, Rhiana Henry, Pavel Uher, Lee A. Groat, and Martin Števko)

The beryl supergroup has been established. Minerals of the beryl supergroup have the general formula ABT1₃M₂(T2₆O₁₈). Suffixes are established for the constituents of the A and B sites. The minerals avdeevite and beryllocordierite-Na have been discredited; beryllosachanbińskiite-Na has been redefined to sachanbińskiite; pezzottaite and johnkoivulaite have been renamed to pezzottaite-(Cs) and johnkoivulaite-(Cs), respectively. The supergroup is divided into the beryl group, including the minerals beryl, bazzite, stoppaniite, pezzottaite-(Cs), and johnkoivulaite-(Cs), and the cordierite group, including the minerals cordierite, sekaninaite, sachanbińskiite, indialite, and ferroindialite.