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 June 2026
IMA No. 2025-018a
Jordanówite
Zr(Ti3+Zr)Ti3+4AlO16
Jrn
In a quarry situated ca. 1 km west of the Jordanów Śląski village, ca. 30 km south of Wrocław, Lower Silesia, Poland (50°52’16” N, 16°50’18” E)
Marcin Stachowicz and Adam Pieczka*
*E-mail: pieczka@agh.edu.pl
Closely related to jianmuite
Tetragonal: I41/a; structure determined
a = 10.7053(3), c = 9.6262(7) Å
7.158(11), 4.287(7), 2.769(100), 2.394(9), 1.697(30), 1.693(15), 1.450(8), 1.444(8)
Type material is deposited in the collections of the Mineralogical Museum, University of Wrocław, Cybulskiego 30, 50-205 Wrocław, Poland, catalogue number MMUWr IV8120
How to cite: Stachowicz, M. and Pieczka, A. (2026) Jordanówite, IMA 2025-018a. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2026-003
Dmitrievite
Sb4Cl2O5
Dmi
In the oxidation zone of the Solnechnoye antimony ore deposit, left bank of the Aksuo River, 26 km east-southeast of Murghab, Eastern Pamir, Gorno-Badakhshan Autonomous Region, Tajikistan (38°06’35” N, 74°15’15” E, 4428 m a.s.l.)
Mirak A. Mirakov, Leonid A. Pautov, Oleg I. Siidra* and Vladimir Y. Karpenko
*E-mail: o.siidra@spbu.ru
Known synthetic analogue
Monoclinic: P21/c; structure determined
a = 6.1993(2), b = 5.1169(2), c = 13.5207(4) Å, β = 97.395(4)°
6.19(100), 3.70(7), 3.34(11), 3.283(20), 3.117(12), 3.094(33), 2.558(10), 2.063(23)
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 6340/1
How to cite: Mirakov, M.A., Pautov, L.A., Siidra, O.I. and Karpenko, V.Y. (2026) Dmitrievite, IMA 2026-003. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2026-004
Luoxianchangite
Ag8SnS4Se2
Lxc
Shuangjianzishan deposit, southern segment of the Great Hinggan Range metallogenic belt, China (44°30’04” N, 119°08’48” E)
Yongmei Zhang, Xuexiang Gu*, Xiangping Gu, Xinli Wang, Guang Fan, Jiangpeng Liu and Huan Xu
*E-mail: xuexiang_gu@163.com
The partially Se-substituted analogue of canfieldite
Orthorhombic: Pmn21; structure determined
a = 7.740(1), b = 7.68(2), c = 10.79(2) Å
6.032(29), 3.440(34), 3.277(36), 3.137(100), 2.545(31), 2.216(26), 2.091(46), 1.916(33)
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 GMCTM2026001
How to cite: Zhang, Y., Gu, X., Gu, X., Wang, X., Fan, G., Liu, J. and Xu, H. (2026) Luoxianchangite, IMA 2026-004. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2026-006
Zhaoyuanite
MnZnTe4+4O10
Zyu
Moctezuma mine, Moctezuma, Sonora, Mexico (29°48’ N, 109°40’ W)
Hexiong Yang*, Xiangping Gu, Ningyue Sun, Robert A. Jenkins, Ronald B. Gibbs and Robert T. Downs
*E-mail: hyang@arizona.edu
Structurally and chemically related to denningite
Tetragonal: P42/nbc; structure determined
a = 8.7199(4), c = 12.9067(5) Å
6.193(32), 4.360(45), 3.343(100), 3.086(52), 2.591(74), 2.011(62), 1.885(34), 1.510(39)
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 number 22752 (holotype), and the RRUFF Project, deposition number R240008 (cotype)
How to cite: Yang, H., Gu, X., Sun, N., Jenkins, R.A., Gibbs, R.B. and Downs, R.T. (2026) Zhaoyuanite, IMA 2026-006. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2026-007
Magnesio-fluoro-riebeckite
□Na2(Mg3Fe3+2)Si8O22F2
Mfrbk
In the western part of the Bayan Obo deposit, about 90 km north of the city of Baotou, Guyang County, Inner Mongolia, China (41°48’ N, 109°53’ E)
Jingyi Wang, Tianyu Yang, Yuqi Zhou, Yuqing Wei, Yuwei Chen, Yifan Wang, Wenchen Zhang, Yiming Zhao, Jingyi Wu, Guanghua Liu and Xiangping Gu*
*E-mail: guxp2004@163.com
Amphibole supergroup
Monoclinic: C2/m; structure determined
a = 9.8075(4), b = 17.9925(7), c = 5.3010(2) Å, β = 103.847(4)°
8.426(86), 4.498(39), 3.407(67), 3.121(57), 2.710(100), 2.585(36), 2.527(55), 2.321(33)
Type material is deposited in the collections of the Geological Museum of China, No. 15, Yangrou Hutong, Xisi, Beijing 100034, People’s Republic of China, catalogue number GMCTM2025003
How to cite: Wang, J., Yang, T., Zhou, Y., Wei, Y., Chen, Y., Wang, Y., Zhang, W., Zhao, Y., Wu, J., Liu, G. and Gu, X. (2026) Magnesio-fluoro-riebeckite, IMA 2026-007. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2026-008
Sakhanaiskite
(Fe2+Ti)Nb2O8
Sakh
Sakhanaiskiy granite massif, 12 km northeast of the township of Duldurga, Duldurginskiy region, Eastern Siberia, Russia (50°23’–50°31’ N, 113°35’–113°48’ E)
Nikita V. Chukanov*, Anatoly V. Kasatkin, Natalia V. Zubkova, Igor V. Pekov, Vasiliy O. Yapaskurt, Marina F. Vigasina, Alla A. Virus, Vera N. Ermolaeva, Dmitriy A. Ksenofontov and Sergey N. Britvin
*E-mail: nikchukanov@yandex.ru
Columbite supergroup
Monoclinic: P2/c; structure determined
a = 4.7469(4), b = 5.7275(5), c = 5.0710(5) Å, β = 90.077(8)°
3.65(36), 2.966(100), 2.540(12), 2.495(21), 2.372(10), 1.771(14), 1.734(19), 1.719(28)
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 83763
How to cite: Chukanov, N.V., Kasatkin, A.V., Zubkova, N.V., Pekov, I.V., Yapaskurt, V.O., Vigasina, M.F., Virus, A.A., Ermolaeva, V.N., Ksenofontov, D.A. and Britvin, S.N. (2026) Sakhanaiskite, IMA 2026-008. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2026-009
Vanadoandrosite-(La)
Mn2+La(V3+AlMn2+)(Si2O7)(SiO4)O(OH)
Vda-La
Mogurazawa mine, Hishimachi, Kiryu, Gunma Prefecture, Japan (36°26’23” N, 139°22’59” E)
Mariko Nagashima*, Daisuke Nishio-Hamane, Masayuki Ohnishi, Hiroshi Miyajima, Osatoshi Murata and Akira Harada
*E-mail: nagashim@yamaguchi-u.ac.jp
Epidote supergroup
Monoclinic: P21/m; structure determined
a = 8.8615(4), b = 5.7236(2), c = 10.0759(4) Å, β = 113.165(5)°
7.92(9), 4.68(10), 3.52(8), 2.90(100), 2.71(37), 2.61(52), 2.17(21), 2.11(16)
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-M53892
How to cite: Nagashima, M., Nishio-Hamane, D., Ohnishi, M., Miyajima, H., Murata, O. and Harada, A. (2026) Vanadoandrosite-(La), IMA 2026-009. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2026-010
Agujaite
Na6Al6(H2O)15(OH)3(AsO4)5(AsO3OH)3·3H2O
Agj
Torrecillas mine, Salar Grande, Iquique Province, Tarapacá Region, Chile (20°58’36” S, 70°08’31” W)
Anthony R. Kampf*, Christopher Emproto, Chi Ma, Simon J. Teat, Gerhard Möhn, Maurizio Dini, Arturo A. Molina Donoso and Joy Désor
*E-mail: akampf@nhm.org
New structure type
Trigonal: R3c1; structure determined
a = 16.2184(8), c = 10.1357(7) Å
14.123(100), 7.091(14), 4.737(39), 3.463(25), 3.106(37), 2.734(15), 1.880(10), 1.803(10)
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 numbers 77414 (holotype), 77415, 77416 and 77417 (cotypes)
How to cite: Kampf, A.R., Emproto, C., Ma, C., Teat, S.J., Möhn, G., Dini, M., Molina Donoso, A.A. and Désor, J. (2026) Agujaite, IMA 2026-010. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
New mineral proposals approved in July 2026
IMA No. 2025-064a
Hydroxyapophyllite-(NH4)
(NH4)Ca4(Si8O20)(OH)(H2O)8
Hapo-NH4
As inclusion in the Kaidun meteorite, fell on December 3, 1980 near Kaidun (Khuraybah), South Yemen, Yemen (15°00’ N, 48°18’ E)
Sergey N. Britvin*, Marina A. Ivanova, Maria G. Krzhizhanovskaya, Nina G. Zinovieva, Natalia S. Vlasenko, Alexander M. Kulkov, Elena A. Sukharzhevskaya, Oleg S. Vereshchagin, Anatoly V. Kasatkin and Igor V. Pekov
*E-mail: sbritvin@gmail.com
Apophyllite group
Tetragonal: P4/mcn; structure determined
a = 9.0058(1), c = 15.7639(4) Å
7.82(100), 4.52(38), 3.905(28), 3.588(39), 2.976(23), 2.956(34), 2.505(40), 2.483(24)
Type material is deposited in the collections of the Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Kosygin St. 19, Moscow 119991, Russia, catalogue number 15415-A3-1
How to cite: Britvin, S.N., Ivanova, M.A., Krzhizhanovskaya, M.G., Zinovieva, N.G., Vlasenko, N.S., Kulkov, A.M., Sukharzhevskaya, E.A., Vereshchagin, O.S., Kasatkin, A.V. and Pekov, I.V. (2026) Hydroxyapophyllite-(NH4), IMA 2025-064a. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2025-079a
Petfordite
ZrW6+2O7(OH)2(H2O)2
Ptf
From the dumps of the Bamford Hill Mine, 3 km north of Petford, Mareeba Shire, Queensland, Australia (17°18’35” S, 144°55’27” E)
Peter Elliott* and Anthony R. Kampf
*E-mail: peter.elliott@adelaide.edu.au
The tungsten analogue of kingsgateite
Tetragonal: I41cd; structure determined
a = 11.4169(3), c = 12.4942(9) Å
5.72(75), 4.23(90), 3.618(88), 3.135(100), 2.600(36), 2.486(42), 1.906(37), 1.734(37)
Cotype material is deposited in the collections of the South Australian Museum, North Terrace, Adelaide, SA 5000, Australia, registration numbers G35468 and G35469
How to cite: Elliott, P. and Kampf, A.R. (2026) Petfordite, IMA 2025-079a. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2026-013
Zincocabrerite
ZnMg2(AsO4)2(H2O)8
Zcabr
Bou Azzer East mine, Bou Azzer mining district, Drâa-Tafilalet Region, Morocco (30°31’’00” N, 6°53’32” W)
Anthony R. Kampf*, Georges Favreau, Christopher Emproto, Travis A. Olds, Chi Ma and Paul M. Adams
*E-mail: akampf@nhm.org
The zinc analogue of cabrerite
Monoclinic: C2/m; structure determined
a = 10.306(2), b = 13.490(2), c = 4.7782(8) Å, β = 105.270(7)°
7.925(24), 6.684(100), 4.402(26), 3.223(47), 3.005(41), 2.721(35), 2.330(26), 2.089(17)
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 77434 (holotype), and the Carnegie Museum of Natural History, 4400 Forbes Avenue, Pittsburgh, PA 15213, USA, catalogue number CM35008 (cotype)
How to cite: Kampf, A.R., Favreau, G., Emproto, C., Olds, T.A., Ma, C. and Adams, P.M. (2026) Zincocabrerite, IMA 2026-013. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2026-014
Hugotibergite
Ca6CaPb2(Si3O9)2(SO4)2(OH)2(H2O)4
Htb
Långban mine, Filipstad municipality, Värmland County, Sweden (59°51’19” N, 14°15’53” E)
Hexiong Yang*, Anthony R. Kampf, Paul M. Adams, Markus Wiklund, Stefan Wiklund and Robert T. Downs
*E-mail: hyang@arizona.edu
The calcium-dominant analogue of roeblingite
Monoclinic: C2/m; structure determined
a = 13.2555(4), b = 8.3290(3), c = 13.1345(4) Å, β = 105.312(1)°
6.993(35), 6.482(99), 3.964(46), 3.229(100), 2.961(82), 2.901(66), 2.544(39), 2.207(50)
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 number 22574 (holotype), and the RRUFF Project, deposition number R260002 (cotype)
How to cite: Yang, H., Kampf, A.R., Adams, P.M., Wiklund, M., Wiklund, S. and Downs, R.T. (2026) Hugotibergite, IMA 2026-014. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
IMA No. 2026-017
Flatimerite
[Al13(OH)24(H2O)24][V5+9V4+O28]·[(SO4)4(H2O)24]
Flm
Burro mine, Slick Rock district, San Miguel Co., Colorado, USA (38°02’42” N, 108°53’23” W)
Anthony R. Kampf*, Christopher Emproto, Travis A. Olds, Chi Ma, William H. Casey, Simon J. Teat, Joe Marty and Alan J. Wilkins
*E-mail: akampf@nhm.org
Pascoite family
Triclinic: 
$P\bar 1$; structure determined
a = 14.1246(9), b = 14.167(1), c = 15.559(1) Å, α = 94.456(2), β = 115.399(2), γ = 111.636(2)°
13.49(88), 12.17(100), 11.42(31), 10.87(12), 7.708(12), 6.978(21), 6.543(7), 4.140(10)
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 77436, 77437, 77438 and 77439
How to cite: Kampf, A.R., Emproto, C., Olds, T.A., Ma, C., Casey, W.H., Teat, S.J., Marty, J. and Wilkins, A.J. (2026) Flatimerite, IMA 2026-017. CNMNC Newsletter 92, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10247
Nomenclature/classification proposals approved in June 2026
Renaming of schultenite to schulténite
The mineral name “schultenite” is executively changed to “schulténite”, in agreement with the original spelling of the name of the person to whom it is dedicated. Indeed, the mineral was named to honour the Finnish chemist August Benjamin af Schultén (1856-1912). Since the mineral dates back to 1926, this was evidently a simple oversight in the massive renaming of minerals that occurred some years ago [Burke, E.A.J.: Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks. Mineralogical Record, 39, 131-135 (2008)].
Modraite: ideal formula
During peer review of the paper presenting the description of the new mineral modraite, IMA no. 2023-108a, first announced in CNMNC Newsletter 79, the ideal formula was corrected from Ca19Fe2+Al4(Al6Fe2+2)(□4)□(SiO4)10(Si2O7)4(OH)10 to Ca19Fe2+(Al11Fe2+)(SiO4)10(Si2O7)4O(OH)9 (https://doi.org/10.2138/am-2025-10007). Accordingly, the IMA formula of modraite is modified by executive decision. This revision is consistent with similar changes recently made to the chemical formulae of closely related minerals (alumovesuvianite, cyprine, and fluorvesuvianite) as reported in CNMNC Newsletter 91.
