CNMNC Newsletter 87

[Stefan]

NEW MINERAL PROPOSALS APPROVED IN AUGUST 2025

IMA 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
Synthetische Nachbildung bekannt; CsCl-type structure; Struktur ermittelt
Kubisch
Im-3m
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
Xiong, F., Mugnaioli, E., Xu, X., Yang, J., Wirth, R., Grew, E.S. and Yates, M.G. (2025) Wangxibinite, IMA 2023-081b. CNMNC Newsletter 87, Mineralogical Magazine, 89

IMA 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
Neuer Strukturtyp; Struktur ermittelt
Hexagonal
P6/mcc
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
Mugnaioli, E., Lorenzon, S., Ferrero, S., Borriello, R., Borghini, A., Biagioni, C., Fuchs, R., Wirth, R., Schreiber, A. and Grew, E.S. (2025) Bonaccorsiite, IMA 2025-028. CNMNC Newsletter 87, Mineralogical Magazine, 89

IMA 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
Isostrukturell mit nixonite und jeppeite; Struktur ermittelt
Monoklin
C2/m
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, D-55116 Mainz, Germany, catalogue number M_2025/862
Juroszek, R., Krüger, B., Cametti, G., Marciniak-Maliszewska, B. and Schäfer, C. (2025) Hopmannite, IMA 2025-034. CNMNC Newsletter 87, Mineralogical Magazine, 89

IMA 2025-036
Abelloemringerite
Cu2Pb2Mn3+Mn4+3O11(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, Cristian Biagioni, Fabrizio Nestola, Daniel del Pozo-Bueno, Sergi Plana-Ruiz, Xavier Llovet, Catalin Popescu, Sònia Estradé, Francesca Peiró and Marc Campeny
Neuer Strukturtyp; Struktur ermittelt
Orthorhombisch
Imma
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
Ibáñez-Insa, J., Rosell, J., Biagioni, C., Nestola, F., del Pozo-Bueno, D., Plana-Ruiz, S., Llovet, X., Popescu, C., Estradé, S., Peiró, F. and Campeny, M. (2025) Abelloemringerite, IMA 2025-036. CNMNC Newsletter 87, Mineralogical Magazine, 89

NEW MINERAL PROPOSALS APPROVED IN SEPTEMBER 2025

IMA 2024-023a
Shojiite
Na(NaMg)Mg5Si8O22(OH)2
Shj
Mamushinosawa Creek, a tributary of 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
Amphibole-Supergruppe; Struktur ermittelt
Monoklin
C2/m
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)
Hamada, M., Ejima, T., Hasebe, N., Mizukami, T., Ishii, A., Okamoto, K., Nagashima, M., Tamura, A. and Morishita, T. (2025) Shojiite, IMA 2024-023a. CNMNC Newsletter 87, Mineralogical Magazine, 89

IMA 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
Olivine-Gruppe; Struktur ermittelt
Orthorhombisch
Pbnm
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
Nishio-Hamane, D., Nagashima, M., Mori, Y., Ohnishi, M., Tanaka, T., Imai, H. and Fukumoto, T. (2025) Hinokageite, IMA 2024-093a. CNMNC Newsletter 87, Mineralogical Magazine, 89

IMA 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
A dimorph of chalcomenite; Struktur ermittelt
Monoklin
P21/n
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)
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. (2025) Clinochalcomenite, IMA 2025-037. CNMNC Newsletter 87, Mineralogical Magazine, 89

IMA 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
Synthetische Nachbildung bekannt; Struktur ermittelt
Monoklin
C2/m
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)
Yang, H., Gu, X., Kampf, A.R., Gibbs, R.B. and Downs, R.T. (2025) Yunhaoite, IMA 2025-040. CNMNC Newsletter 87, Mineralogical Magazine, 89

IMA 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
Chemically und structurally related to marécottite; Struktur ermittelt
Orthorhombisch
Fddd
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)
Kampf, A.R., Plášil, J., Olds, T.A., Emproto, C., Ma, C., Sejkora, J., Adams, P.M. and Marty, J. (2025) Hubbardite, IMA 2025-041. CNMNC Newsletter 87, Mineralogical Magazine, 89

IMA 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
Tourmaline-Supergruppe; Struktur ermittelt
Trigonal
R3m
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
Skřápková, L., Cempírek, J., Škoda, R., Holá, M., Novotný, F. and Bosi. F. (2025) Liddicoatite, IMA 2025-047. CNMNC Newsletter 87, Mineralogical Magazine, 89


NOMENCLATURE/CLASSIFICATION PROPOSALS APPROVED IN SEPTEMBER 2025

Jeppeite group

(Rafał Juroszek, Biljana Krüger and Christof Schäfer)

https://doi.org/10.1180/mgm.2025.10163 Published online by Cambridge University Press

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

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)]

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.

OTHER ISSUES

The CNMNC wishes to clarify that the approval of Proposal 04-A (March 2004) is to be understood as including the introduction of the triplite-triploidite supergroup, in accordance with Chopin et al. [European Journal of Mineralogy, 26, 553-565 (2014)].