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 (ideal formula)
Mineral symbol
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 website.
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 DECEMBER 2024
IMA No. 2023-020a
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Metaheimite
PbCu2(AsO4)(OH)3
Mhim
Grosses Chalttal deposit, Mürtschenalp district, Glarus, Switzerland (47°04′09.9″ N, 9°11′26.5″ E)
Thomas Malcherek*, Boriana Mihailova, Jochen Schlüter, Philippe Roth and Nicolas Meisser
*E-mail: thomas.malcherek@uni-hamburg.de
New structure type
Orthorhombic: P2 1/n; structure determined
a = 5.8347(4), b = 7.7528(6), c = 13.8899(9) Å, β = 90.018(3)°
7.070(43), 3.863(67), 3.139(100), 2.926(38), 2.778(37), 2.673(59), 2.546(41), 1.609(44)
Type material is deposited in the collections of the Mineralogical Museum, Leibniz-Institut zur Analyse des Biodiversitätswandels, Grindelallee 48, D-20146 Hamburg, Germany, registration number ro-3702
How to cite: Malcherek, T., Mihailova, B., Schlüter, J., Roth, P. and Meisser, N. (2025) Metaheimite, IMA 2023-020a. CNMNC Newsletter 83, Mineralogical Magazine, 89, https://10.1180/mgm.2025.7
IMA No. 2024-036
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Meizhouite
Fe2+V3+2(PO4)2(OH)2
Mzh
Yushui deposit, about 16 km northeast of Meizhou, Guangdong Province, China (24°25′18″ N, 116°11′48″ E)
Wei Yao, Peng Liu*, Guowu Li, Ningyue Sun, Yuan Xue, Changzhi Wu, Wenqiang Yang, Wenlei Song and Nigel Cook
*E-mail: pengliu@nwu.edu.cn
Lazulite group
Monoclinic: P21/c; structure determined
a = 7.2992(9), b = 7.4560(5), c = 7.475(1) Å, β = 120.53(1)°
6.383(36), 4.871(58), 3.338(100), 3.244(49), 3.164(39), 2.290(28), 2.026(22), 1.614(18)
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 GMCTM2024006
How to cite: Yao, Q., Liu, P., Li, G., Sun, N., Xue, Y., Wu, C., Yang, W., Song, W. and Cook, N. (2025) Meizhouite, IMA 2024-036. CNMNC Newsletter 83, Mineralogical Magazine, 89, https://10.1180/mgm.2025.7
IMA No. 2024-063
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Szilagyiite
NaCa3(UO2)(CO3)3(SeO3)F(H2O)6
Szg
Pickett Corral mine, Montrose Co., Colorado, USA (38°11′50.0″ N, 108°50′30.0″ W)
Travis A. Olds*, Christopher Emproto, Anthony R. Kampf, Chi Ma and Joe Marty
*E-mail: oldst@carnegiemnh.org
New structure type
Trigonal: R3c; structure determined
a = 9.6542(9), c = 33.465(5) Å
5.916(100), 4.836(58), 3.744(77), 3.125(33), 2.960(60), 2.795(62), 1.828(40), 1.744(35)
Type material is deposited in the collections of the Carnegie Museum of Natural History, 4400 Forbes Avenue, Pittsburgh, PA 15213, USA, catalogue number CM34760.
How to cite: Olds, T.A., Emproto, C., Kampf, A.R., Ma, C. and Marty, J. (2025) Szilagyiite, IMA 2024-063. CNMNC Newsletter 83, Mineralogical Magazine, 89, https://10.1180/mgm.2025.7
IMA No. 2024-064
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Stunorthropite
(NH4)4[Mo2O6(MoO4)2]
Snp
Summit group of claims, near Cookes Peak, southern end of the Cookes Range, Luna Co., New Mexico, USA (32°33′47″ N, 107°43′48″ W)
Hexiong Yang*, Xiangping Gu, Anthony R. Kampf, Ronald B. Gibbs, John Rakovan and Robert T. Downs
*E-mail: hyang@arizona.edu
Known synthetic analogue
Triclinic: P
$\bar{1}$; structure determineda = 7.9503(2), b = 7.2863(1), c = 7.2724(2) Å, α = 94.397(1), β = 114.556(1), γ = 82.617(1)°
7.202(39), 6.343(100), 5.072(38), 4.831(57), 3.651(73), 3.351(53), 3.291(50), 3.194(16)
Type material is deposited in the collections of the New Mexico Bureau of Geology, Mineral Resources & Mineral Museum, 801 Leroy Place, Socorro, NM 87801-4796, USA, catalogue no. 19195 (holotype), and the RRUFF Project, deposition no. R240001 (cotype)
How to cite: Yang, H., Gu, X., Kampf, A.R., Gibbs, R.B., Rakovan, J. and Downs, R.T. (2025) Stunorthropite, IMA 2024-064. CNMNC Newsletter 83, Mineralogical Magazine, 89, https://10.1180/mgm.2025.7
IMA No. 2024-065
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Stibiosegnitite
Pb(Fe3+2.5Sb5+0.5)(AsO4)2(OH)6
Ssgt
“Phosphatno-Arsenatnaya Vein”, 245 m level of the southern open pit of the Murzinskoe deposit, Krasnoshchyokovskiy District, Altai Krai, Western Siberia, Russia (51°35′24.1″ N, 82°36′41.4″ E)
Anatoly V. Kasatkin*, Natalia V. Zubkova, Radek Škoda, Nikita V. Chukanov, Fabrizio Nestola, Vladislav V. Gurzhiy, Atali A. Agakhanov, Dmitry I. Belakovskiy and Vladimir S. Lednev
*E-mail: anatoly.kasatkin@gmail.com
Alunite supergroup
Trigonal: R
$\bar{3}$m; structure determineda = 7.3462(7), c = 17.115(2) Å
5.967(83), 3.674(51), 3.088(100), 2.857(31), 2.554(17), 2.284(23), 1.988(22), 1.837(15)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninsky Pr. 18-2, 119071 Moscow, Russia, registration number 6154/1
How to cite: Kasatkin, A.V., Zubkova, N.V., Škoda, R., Chukanov, N.V., Nestola, F., Gurzhiy, V.V., Agakhanov, A.A., Belakovskiy, D.I. and Lednev, V.S. (2025) Stibiosegnitite, IMA 2024-065. CNMNC Newsletter 83, Mineralogical Magazine, 89, https://10.1180/mgm.2025.7
NEW MINERAL PROPOSALS APPROVED IN JANUARY 2025
IMA No. 2024-060
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Anningite-(Ce)
(Ca0.5Ce4+0.5)(VO4)
Aig-Ce
Gara Samani Formation, about 40 km east of the village of Meguidene, 2 km southeast of the RN 51 national road linking the towns of Timimoun and El Menia, Algeria (29°41′31.14″ N, 1°56′20.62″ E)
Dorota Środek*, Rafał Juroszek, Georgia Cametti, Madani Benyoucef, Imad Bouchemla, Tomasz Krzykawski and Mariusz Salamon
*E-mail: dorota.srodek@us.edu.pl
Xenotime group
Tetragonal: I41/amd; structure determined
a = 7.1500(4), c = 6.3343(7) Å
3.575(100), 2.684(61), 2.528(14), 2.231(12), 1.840(56), 1.788(16), 1.599(12), 1.488(17)
Type material is deposited in the collections of the Natural History Museum, Reichklarastrasse10, 55116 Mainz, Germany, catalogue number NHMMZ M 2024/2 LS
How to cite: Środek, D., Juroszek, R., Cametti, G., Benyoucef, M., Bouchemla, I., Krzykawski, T. and Salamon, S. (2025) Anningite-(Ce), IMA 2024-060. CNMNC Newsletter 83, Mineralogical Magazine, 89, https://10.1180/mgm.2025.7
IMA No. 2024-067
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Dulanggouite
Bi6Te3
Dlg
Dulanggou gold mine, about 250 km west of Chengdu, China (30°58′50″ N, 101°36′30″ E)
Shiji Zheng*, Cuihua Chen, Yuan Xue, Weiguang Zhu, Zhongjie Bai, Guowu Li, Ningyue Sun and Kaixuan Li
*E-mail: zhengshiji@mail.gyig.ac.cn
Known synthetic analogue
Trigonal: P
$\bar{3}$m1; structure determineda = 4.4639(4), c = 17.904(1) Å
3.252(100), 2.367(24), 2.238(37), 1.993(11), 1.843(11), 1.626(9), 1.488(13), 1.423(18)
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 GMCTM2024009
How to cite: Zheng, S., Chen, C., Xue, Y., Zhu, W., Bai, Z., Li, G., Sun, N. and Li, K. (2025) Dulanggouite, IMA 2024-067. CNMNC Newsletter 83, Mineralogical Magazine, 89, https://10.1180/mgm.2025.7
IMA No. 2024-068
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Svornostite-(NH4)
(NH4)2Mg(UO2)2(SO4)4(H2O)8
Svo-NH4
Blue Lizard mine, Red Canyon, White Canyon District, San Juan Co., Utah, USA (37°33′26″ N, 110°17′44″ W)
Anthony R. Kampf*, Travis A. Olds, Jakub Plášil, Chi Ma, Aaron J. Celestian and Joe Marty
*E-mail: akampf@nhm.org
The ammonium analogue of svornostite
Orthorhombic: Pmn21; structure determined
a = 13.0259(9), b = 8.2909(4), c = 11.2589(4) Å
8.287(28), 6.538(100), 5.118(32), 4.649(47), 3.343(44), 3.020(42), 2.112(27), 2.067(27)
Cotype material is deposited in the collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 76445, 76446, 76447 and 76448
How to cite: Kampf, A.R., Olds, T.A., Plášil, J., Ma, C., Celestian, A.J. and Marty, J. (2025) Svornostite-(NH4), IMA 2024-068. CNMNC Newsletter 83, Mineralogical Magazine, 89, https://10.1180/mgm.2025.7
NOMENCLATURE/CLASSIFICATION PROPOSALS APPROVED IN NOVEMBER 2024
IMA 24-D: Kaolinite-Neotype proposal
(Jeffrey de Fourestier, David L. Bish, Juergen Schieber, Chengdong Liu and Shanchu Han)
Proposal 24-D is accepted, and neotype samples are defined for kaolinite. The type locality is the village of Gaoling, Jiangxi Province, China. Neotype material is deposited in the mineralogical collection of the Canadian Museum of Nature, Ottawa, Canada, under catalogue numbers CMNMC 91699 [JDZ-K8] and CMNMC 91700 [JDZ-W1].
IMA 24-E: Proposal to change the formula of metaschoderite back to Al2(PO4)(VO4)·6H2O
(Erika Kiechle and Thomas Witzke)
Proposal 24-E on metaschoderite is accepted, and the formula of this species is changed back to Al2(PO4)(VO4)·6H2O, according to the original description.
NOMENCLATURE/CLASSIFICATION PROPOSALS APPROVED IN DECEMBER 2024
Nolanite supergroup – another round of voting
(Nkita V. Chukanov, Vasilisa M. Gridchina, Ramiza K. Rastsvetaeva, Natalia V. Zubkova and Igor V. Pekov)
Subsequent to the approval of the nolanite supergroup report (see CNMNC Newsletter 80) and during the review of the manuscript some additional queries arose. Therefore a second round of voting has been necessary on a revised version in which the criticism raised has been addressed. The main update with respect to the previous approval is the following: the subdivision of the nolanite supergroup into three groups (kamiokite group, nolanite group, rinmanite group) is made not only in accordance with the largest charge of the species-defining octahedral cations (namely, cations at the sites M1 and M2, which are considered as a whole), but also taking into account the dominant X species (X = O or OH).
NOMENCLATURE/CLASSIFICATION PROPOSALS APPROVED IN JANUARY 2025
Establishment of the svornostite group and renaming of svornostite and oldsite
(Anthony R. Kampf, Travis A. Olds, Jakub Plášil, Chi Ma, Aaron J. Celestian and Joe Marty)
Concurrent with the approval of the new mineral svornostite-(NH4) (IMA No. 2024-068; this Newsletter) the svornostite group is established. In the frame of this, the minerals svornostite and oldsite have been renamed svornostite-(K) and oldsite-(K), respectively. The svornostite group is divided into the svornostite subgroup, which includes svornostite-(K), svornostite-(NH4) and oldsite-(K), and the rietveldite subgroup, which includes rietveldite and zincorietveldite.
OTHER ISSUES
Voting majority for CNMNC proposals on new minerals, nomenclature changes and mineral groups
(Frdinando Bosi, Frédéric Hatert, Marco Pasero and Stuart J. Mills)
The officers’ proposal, stemming from discussions among members during the CNMNC business meeting on August 20, 2024, at the EMC conference in Dublin, to increase the voting majority required for proposals submitted to the CNMNC, has been approved. As a result, the CNMNC has adopted a new threshold requiring more than 75% positive votes for the approval of new minerals, nomenclature changes, and the establishment of mineral groups or supergroups. The chair or the officer in charge retains the authority to suspend voting if significant concerns are raised by members.
