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 JUNE 2018
IMA No. 2017-118
Jahnsite-(MnMnMg)
Mn2+Mn2+Mg2Fe3+2(PO4)4(OH)2·8H2O
Proberylo, Sapucaia, Galiléia, Minas Gerais, Brazil (18°54′3″S, 41°29′4″W)
Pietro Vignola*, Frédéric Hatert, Maxime Baijot, Nicola Rotiroti, Andrea Risplendente and Sergio Vavello
*E-mail: pietro.vignola@idpa.cnr.it
Jahnsite group
Monoclinic: P2/a; structure determined
a = 15.177(2), b = 7.176(1), c = 10.006(3) Å, β = 111.01(2)°
9.28(100), 4.945(39), 4.627(20), 3.521(43), 2.988(52), 2.842(81), 1.958(27), 1.581(27)
Type material is deposited in the mineralogical collections of the Laboratoire de Minéralogie, University of Liege, Bât. B18, Sart Tilman, B-4000 Liège, Belgium, catalogue no. 21140
How to cite: Vignola, P., Hatert, F., Baijot, M., Rotiroti, N., Risplendente, A. and Vavello, S. (2018) Jahnsite-(MnMnMg), IMA 2017-118. CNMNC Newsletter No. 44, August 2018, page 1016; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-010
Eddavidite
Pb2Cu12O15Br2
Southwest Mine, Bisbee, Warren District, Cochise Co., Arizona, USA (31°26′23″N, 109°54′56″W)
Hexiong Yang* and Robert T. Downs
*E-mail: hyang@email.arizona.edu
The Br analogue of murdochite
Cubic: Fm 
$\overline 3 $m; structure determined
a = 9.2407(9) Å
5.296(40), 4.739(15), 2.668(100), 2.305(31), 2.120(13), 1.632(35), 1.394(28), 1.060(11)
Cotype material is deposited in the collections of the University of Arizona Mineral Museum, Tucson, AZ 85719, USA, catalogue # 12326, and the RRUFF Project, deposition # R050381
How to cite: Yang, H. and Downs, R.T. (2018) Eddavidite, IMA 2018-010. CNMNC Newsletter No. 44, August 2018, page 1016; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-019
Yarzhemskiite
K[B5O7(OH)2]·H2O
Chelkar salt dome (drillcore of borehole #800, depth 344–347 m), near Chelkar (Shalkar) lake, Western Kazakhstan Region, Kazakhstan
Igor V. Pekov*, Natalia V. Zubkova, Oksana V. Korotchenkova, Ilya I. Chaikovskiy, Vasiliy O. Yapaskurt, Nikita V. Chukanov, Dmitry I. Belakovskiy, Inna S. Lykova, Sergey N. Britvin and Dmitry Y. Pushcharovsky
*E-mail: igorpekov@mail.ru
The K analogue of larderellite
Monoclinic: P21/c; structure determined
a = 9.4734(2), b = 7.5203(2), c = 11.4205(2) Å, β = 97.300(2)°
9.39(86), 4.696(41), 3.296(18), 3.130(19), 2.935(42), 2.898(100), 2.832(56), 1.867(18)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration number 5154/1
How to cite: Pekov, I.V., Zubkova, N.V., Korotchenkova, O.V., Chaikovskiy, I.I., Yapaskurt, V.O., Chukanov, N.V., Belakovskiy, D.I., Lykova, I.S., Britvin, S.N. and Pushcharovsky, D.Y. (2018) Yarzhemskiite, IMA 2018-019. CNMNC Newsletter No. 44, August 2018, page 1016; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-020
Stefanweissite
(Ca,REE)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14
In den Dellen (Zieglowski) pumice quarry, 1.5 km NE of Mendig, Laach Lake (Laacher See) volcano, Eifel region, Rhineland-Palatinate, Germany
Nikita V. Chukanov*, Natalia V. Zubkova, Igor V. Pekov, Marina F. Vigasina, Yury S. Polekhovsky, Bernd Ternes, Willi Schüller, Sergey N. Britvin and Dmitry Y. Pushcharovsky
*E-mail: chukanov@icp.ac.ru
Closely related to nöggerathite-(Ce)
Orthorhombic: Cmca; structure determined
a = 7.2896(4), b = 14.1435(5), c = 10.1713(4) Å
2.983(100), 2.897(71), 1.828(38), 1.793(25), 1.767(16), 1.536(9), 1.517(10), 1.187(19)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration number 5191/1
How to cite: Chukanov, N.V., Zubkova, N.V., Pekov, I.V., Vigasina, M.F., Polekhovsky, Y.S., Ternes, B., Schüller, W., Britvin, S.N. and Pushcharovsky, D.Y. (2018) Stefanweissite, IMA 2018-020. CNMNC Newsletter No. 44, August 2018, page 1016; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-021
Thermaerogenite
CuAl2O4
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*, Fedor D. Sandalov, Natalia N. Koshlyakova, Yury S. Polekhovsky, Marina F. Vigasina, Sergey N. Britvin and Evgeny G. Sidorov
*E-mail: igorpekov@mail.ru
Spinel supergroup
Cubic: Fd 
$\overline 3 $m
a = 8.131(1) Å
2.873(65), 2.451(100), 2.033(10), 1.865(6), 1.660(16), 1.565(28), 1.438(30), 1.240(6)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration number 5192/1
How to cite: Pekov, I.V., Sandalov, F.D., Koshlyakova, N.N., Polekhovsky, Y.S., Vigasina, M.F., Britvin, S.N. and Sidorov, E.G. (2018) Thermaerogenite, IMA 2018-021. CNMNC Newsletter No. 44, August 2018, page 1017; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-022
Picaite
NaCa[AsO3OH][AsO2(OH)2]
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
Monoclinic: P21/c; structure determined
a = 7.2474(4), b = 14.6547(7), c = 7.2624(5) Å, β = 99.520(7)°
4.45(74), 3.651(100), 3.473(100), 3.383(48), 2.893(28), 1.802(27), 1.621(27), 1.558(24)
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 67257 and 67285
How to cite: Kampf, A.R., Nash, B., Dini, M. and Molina Donoso, A.A. (2018) Picaite, IMA 2018-022. CNMNC Newsletter No. 44, August 2018, page 1017; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-023
Ríosecoite
Ca2Mg(AsO3OH)3(H2O)2
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
Triclinic: P 
$\overline 1 $; structure determined
a = 6.8110(9), b = 7.316(1), c = 11.777(2) Å, α = 83.466(6), β = 84.394(6), γ = 79.779(6)°
7.18(36), 4.239(35), 3.578(100), 3.361(41), 3.142(43), 3.006(48), 2.914(28), 2.784(71)
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 67257
How to cite: Kampf, A.R., Nash, B., Dini, M. and Molina Donoso, A.A. (2018) Ríosecoite, IMA 2018-023. CNMNC Newsletter No. 44, August 2018, page 1017; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-024
Pandoraite-Ba
BaV4+5V5+2O16·3H2O
Pandora mine, La Sal district (Paradox Valley district), San Juan Co., Colorado, USA (38°18′34″N, 109°13′13″W)
Anthony R. Kampf*, John M. Hughes, Barbara P. Nash and Joe Marty
*E-mail: akampf@nhm.org
Known synthetic analogue
Monoclinic: P2; structure determined
a = 6.154(2), b = 6.153(2), c = 21.356(7) Å, β = 90.058(9)°
10.9(100), 5.41(12), 3.631(18), 2.812(19), 2.739(20), 2.559(26), 2.176(13), 1.934(20)
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 67293 and 67294
How to cite: Kampf, A.R., Hughes, J.M., Nash, B.P. and Marty, J. (2018) Pandoraite-Ba, IMA 2018-024. CNMNC Newsletter No. 44, August 2018, page 1017; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-025
Camanchacaite
NaCaMg2[AsO4][AsO3(OH)]2
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
Alluaudite group
Monoclinic: C2/c
a = 12.470(9), b = 12.554(9), c = 6.848(9) Å, β = 113.75(2)°
6.27(40), 4.134(66), 3.263(93), 3.115(60), 2.806(96), 2.735(100), 1.952(39), 1.689(49)
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 67257, 66771, 66772, 66773 and 66774
How to cite: Kampf, A.R., Nash, B., Dini, M. and Molina Donoso, A.A. (2018) Camanchacaite, IMA 2018-025. CNMNC Newsletter No. 44, August 2018, page 1018; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-027
Hitachiite
Pb5Bi2Te2S6
Fudotaki deposit, Hitachi mine, Hitachi, Ibaraki, Japan (36°37′16.03″N, 140°36′46.50″E)
Takahiro Kuribayashi*, Toshiro Nagase, Tatsuo Nozaki, Junichiro Ishibashi, Kazuhiko Shimada, Masaaki Shimizu and Koichi Momma
*E-mail: t-kuri@m.tohoku.ac.jp
Tetradymite group
Trigonal: P 
$\overline 3 $m1
a = 4.220(1), c = 27.02(4) Å
3.541(35), 3.391(59), 3.039(100), 2.177(14), 2.114(56), 2.040(11), 1.793(18), 1.735(18)
Type material is deposited in the mineralogical collections of the National Museum of Nature and Science, Tokyo, Japan, registration number NSM-M45821
How to cite: Kuribayashi, T., Nagase, T., Nozaki, T., Ishibashi, J., Shimada, K., Shimizu, M. and Momma, K. (2018) Hitachiite, IMA 2018-027. CNMNC Newsletter No. 44, August 2018, page 1018; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-028
Lepageite
Mn2+3(Fe3+7Fe2+4)O3[Sb3+5As3+8O34]
Szklary pegmatite, ca. 6 km N of the Ząbkowice Śląskie town, ca. 60 km S of Wrocław, Lower Silesia, Poland (50°39′04″N, 16°49′56″E)
Adam Pieczka*, Mark A. Cooper and Frank C. Hawthorne
*E-mail: pieczka@agh.edu.pl
New structure type
Triclinic: P 
$\overline 1 $; structure determined
a = 10.607(3), b = 10.442(3), c = 15.260(5) Å, α = 89.58(1), β = 104.479(8), γ = 89.706(9)°
2.898(85), 2.854(92), 2.846(88), 2.831(100), 2.487(34), 2.474(34), 2.463(34), 1.728(24)
Type material is deposited in the collections of the Mineralogical Museum, University of Wrocław, Cybulskiego 30, 50–205 Wrocław, Poland, catalogue number MMWr IV7926
How to cite: Pieczka, A., Cooper, M.A. and Hawthorne, F.C. (2018) Lepageite, IMA 2018-028. CNMNC Newsletter No. 44, August 2018, page 1018; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2017-067a
Wumuite
KAl0.33W2.67O9
Nanyang Village, Huaping Co., Panzhihua-Xichang region, China (101°27'13.86”E, 26°46'8.21”N)
Guowu Li* and Yuan Xue
*E-mail: liguowu@cugb.edu.cn
Known synthetic analogue
Hexagonal: P6/mmm; structure determined
a = 7.2952(5), c = 3.7711(3) Å
6.261(36), 3.727(30), 2.610(10), 3.161(100), 2.413(40), 1.881(10), 1.820(15), 1.577(15)
Type material is deposited in the mineralogical collections of the Geological Museum of China, 15 Xisi Mutton Alley, Beijing, China, registration No. M13782 (holotype), and the Crystal Structure Laboratory, China University of Geosciences, Beijing 100083, China, catalogue No. NY-6-2Z (cotype)
How to cite: Li, G. and Xue, Y. (2018) Wumuite, IMA 2017-067a. CNMNC Newsletter No. 44, August 2018, page 1018; Mineralogical Magazine, 82, 1015–1021.
NEW MINERAL PROPOSALS APPROVED IN JULY 2018
IMA No. 2018-017
Jahnsite-(NaMnMg)
(Na,Ca)(Mn2+,Fe3+)(Mg,Fe3+)2Fe3+2(PO4)4(OH)2 (H2O)8
Sapucaia pegmatite, Conselheiro Pena district, Minas Gerais, Brazil (18°54′38″S, 41°29′61″W) – type locality; White Rock No. 2 quarry, Bimbowrie Conservation Park, 24 km N of Olary, South Australia, Australia (140°19′E, 32°4′S) – cotype locality
Anthony R. Kampf*, Peter Elliott, Barbara P. Nash, Luigi Chiappino and Sergio Varvello
*E-mail: akampf@nhm.org
Jahnsite group
Monoclinic: P2/a; structure determined
a = 15.104(1), b = 7.1629(2), c = 9.8949(7) Å, β = 110.640(7)°
9.29(100), 5.02(27), 4.91(30), 3.546(32), 2.975(26), 2.834(91), 2.601(33), 1.944(33)
Type material is deposited in the collections of the Mineral Sciences Department, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007, USA, catalogue number 66701 (Sapucaia), and the South Australian Museum, North Terrace, Adelaide, South Australia, Australia, registration number G34298 (White Rock)
How to cite: Kampf, A.R., Elliott, P., Nash, B.P., Chiappino, L. and Varvello, S. (2018) Jahnsite-(NaMnMg), IMA 2018-017. CNMNC Newsletter No. 44, August 2018, page 1019; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-029
Hg2+3[NHg2+2]18(Cl,I,OH,Br,S)24
Clear Creek mine, New Idria mining district, San Benito Co., California, USA (120°43′58″W, 36°22′59″N)
Mark A. Cooper, Frank C. Hawthorne*, Andrew C. Roberts, Christopher J. Stanley, John Spratt and Andrew G. Christy
*E-mail: frank_hawthorne@umanitoba.ca
Loosely chemically related to comancheite
Orthorhombic: Amam; structure determined
a = 26.381(6), b = 45.59(1), c = 6.684(1) Å
5.965(40), 5.717(50), 5.018(40), 2.853(100), 2.776(100), 2.745(100), 2.690(35), 1.673(40)
Type material is deposited in the mineralogical collections of the Department of Natural History, Royal Ontario Museum, 100 Queens Park, Toronto, Ontario M5S 2C6, Canada, catalogue number M58523
How to cite: Cooper, M.A., Hawthorne, F.C., Roberts, A.C., Stanley, C.J., Spratt, J. and Christy, A.G. (2018) IMA 2018-029. CNMNC Newsletter No. 44, August 2018, page 1019; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-031
Pliniusite
Ca5(VO4)3F
Southern fumarole field, Mountain 1004, Tolbachik volcano, Kamchatka peninsula, Far-Eastern Region, Russia (holotype); Nahal Morag canyon, Hatrurim Basin, Israel (cotype)
Igor V. Pekov*, Natalia V. Zubkova, Natalia N. Koshlyakova, Arkadiusz Krzątała, Dmitry I. Belakovskiy, Irina O. Galuskina, Evgeny V. Galuskin, Sergey N. Britvin, Evgeny G. Sidorov, Yevgeny Vapnik and Dmitry Y. Pushcharovsky
*E-mail: igorpekov@mail.ru
Apatite supergroup
Hexagonal: P63/m; structure determined
a = 9.5777(7), c = 6.9659(5) Å
3.958(27), 3.488(33), 2.869(100), 2.823(35), 2.776(58), 2.674(25), 1.980(19), 1.871(23)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration numbers 5202/1 (Tolbachik) and 5202/2 (Nahal Morag)
How to cite: Pekov, I.V., Zubkova, N.V., Koshlyakova, N.N., Krzątała, A., Belakovskiy, D.I., Galuskina, I.O., Galuskin, E.V., Britvin, S.N., Sidorov, E.G., Vapnik, Y. and Pushcharovsky, D.Y. (2018) Pliniusite, IMA 2018-031. CNMNC Newsletter No. 44, August 2018, page 1019; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-034
Goldschmidtite
KNbO3
As inclusion in a diamond from the Koffiefontein kimberlite pipe, South Africa (29°24.9′S, 24°59.5′E)
Nicole A. Meyer*, Michelle D. Wenz, James P.S. Walsh, Steven D. Jacobsen, Andrew J. Locock and Jeffrey W. Harris
*E-mail: nameyer@ualberta.ca
The K analogue of isolueshite
Cubic: Pm 
$\overline 3 $m
a = 3.9875(1) Å
2.820(100), 1.994(50), 1.628(58), 1.410(36), 1.261(28), 1.066(38), 0.892(30), 0.814(43)
Type material is deposited in the mineralogical collections of the Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada, accession number M58208
How to cite: Meyer, N.A., Wenz, M.D., Walsh, J.P.S., Jacobsen, S.D., Locock, A.J. and Harris, J.W. (2018) Goldschmidtite, IMA 2018-034. CNMNC Newsletter No. 44, August 2018, page 1020; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-035
Mengeite
Ba(Mg,Mn2+)Mn3+4(PO4)4(OH)4·4H2O
Spring Creek copper mine, 10 km S of Wilmington, South Australia, Australia
Peter Elliott*
*E-mail: peter.elliott@adelaide.edu.au
Structurally related to bermanite and ercitite
Triclinic: P 
$\overline 1 $; structure determined
a = 5.426(1), b = 5.427(1), c = 16.387(3) Å, α = 87.63(3), β = 99.08(3), γ = 110.63(3)°
16.126(100), 5.106(12), 4.418(44), 3.246(14), 3.191(9), 3.145(12), 2.796(25), 2.680(12)
Type material is deposited in the mineralogical collections of the South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia, registration number G34744
How to cite: Elliott, P. (2018) Mengeite, IMA 2018-035. CNMNC Newsletter No. 44, August 2018, page 1020; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-036
Pandoraite-Ca
CaV4+5V5+2O16·3H2O
Pandora mine, La Sal district (Paradox Valley district), San Juan Co., Colorado, USA (38°18′34″N, 109°13′13″W)
Anthony R. Kampf*, John M. Hughes, Barbara P. Nash and Joe Marty
*E-mail: akampf@nhm.org
Isostructural with pandoraite-Ba (IMA 2018-024; this newsletter)
Monoclinic: P2
a = 6.1119(8), b = 6.105(8), c = 21.460(9) Å, β = 90.1(1)°
11.07(100), 4.055(12), 3.629(11), 3.084(16), 2.831(14), 2.745(22), 2.564(23), 1.940(25)
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 67287
How to cite: Kampf, A.R., Hughes, J.M., Nash, B.P. and Marty, J. (2018) Pandoraite-Ca, IMA 2018-036. CNMNC Newsletter No. 44, August 2018, page 1020; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-037
Zinconigerite-2N1S
ZnSn2Al12O22(OH)2
Xianghualing skarn, Linwu County, Hunan Province, China (112°34′E, 25°26′N)
Can Rao*, Rucheng Wang, Xiangping Gu, Qunke Xia, Chuanwan Dong, Frédéric Hatert, Xuege Yu and Wumengyu Wang
*E-mail: canrao@zju.edu.cn
Nigerite group
Trigonal: P 
$\overline 3 $m1
a = 5.714(1), c = 13.821(3) Å
2.841(74), 2.431(100), 1.851(25), 1.834(34), 1.646(74), 1.545(81), 1.428(32), 1.417(27)
Type material is deposited in the mineralogical collections of the Geological Museum of China, No. 16, Yangrou Hutong, Xisi, Beijing 100031, People's Republic of China, catalogue number M13810
How to cite: Rao, C., Wang, R., Gu, X., Xia, Q., Dong, C., Hatert, F., Yu, X. and Wang, W. (2018) Zinconigerite-2N1S, IMA 2018-037. CNMNC Newsletter No. 44, August 2018, page 1020; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-038
Proxidecagonite
Al34Ni9Fe2
In a fragment of the Khatyrka meteorite, Koryak Mountains, Russia
Luca Bindi* and Paul J. Steinhard
*E-mail: luca.bindi@unifi.it
New structure type
Orthorhombic: Pnma; structure determined
a = 29.013(3), b = 8.156(1), c = 12.401(2) Å
3.96(50), 3.80(40), 3.403(40), 2.069(50), 2.045(100), 2.036(30), 2.033(50), 2.024(70)
Type material is deposited in the mineralogical collections of the Museo di Storia Naturale – Sezione di Mineralogia e Litologia, Università di Firenze, Via La Pira 4, I-50121 Firenze, Italy, catalogue number 3291/I
How to cite: Bindi, L. and Steinhard, P.J. (2018) Proxidecagonite, IMA 2018-038. CNMNC Newsletter No. 44, August 2018, page 1020; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-039
Meyrowitzite
Ca(UO2)(CO3)2·5H2O
Markey mine, Red Canyon, White Canyon District, San Juan Co., Utah, USA (37°32′57″, 110°18′08″W)
Anthony R. Kampf*, Jakub Plášil, Travis Olds, Barbara P. Nash and Joe Marty
*E-mail: akampf@nhm.org
A dimorph of zellerite
Monoclinic: P21/n; structure determined
a = 12.376(3), b = 16.087(1), c = 20.134(2) Å, β = 107.68(1)°
12.11(100), 9.52(48), 8.19(59), 5.96(68), 5.04(79), 4.359(45), 4.057(32), 3.944(31)
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 66789 and 66790
How to cite: Kampf, A.R., Plášil, J., Olds, T., Nash, B.P. and Marty, J. (2018) Meyrowitzite, IMA 2018-039. CNMNC Newsletter No. 44, August 2018, page 1021; Mineralogical Magazine, 82, 1015–1021.
IMA No. 2018-040
Cerromojonite
CuPbBiSe3
El Dragón mine, Quijarro province, 30 km SW of Potosí, Bolivia (19°49′23.90″S, 65°55′00.60″W, 4160 m a.s.l.)
Hans-Jürgen Förster*, Luca Bindi, Günter Grundmann and Christopher J. Stanley
*E-mail: forhj@gfz-potsdam.de
The Se analogue of součekite
Monoclinic: Pn21m; structure determined
a = 8.202(1), b = 8.741(1), c = 8.029(1) Å
4.00(20), 3.86(25), 2.783(100), 2.727(55), 2.608(40), 1.999(25), 1.992(20), 1.788(20)
Type material is deposited in the mineralogical collections of the Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom, catalogue number BM 2018,11 (polished section), and the Mineralogical State Collection – Museum Reich der Kristalle, Theresienstraße 41, 80333 München, Germany, inventory number MSM 73583 (cotype)
How to cite: Förster, H.-J., Bindi, L., Grundmann, G. and Stanley, C.J. (2018) Cerromojonite, IMA 2018-040. CNMNC Newsletter No. 44, August 2018, page 1021; Mineralogical Magazine, 82, 1015–1021.
NOMENCLATURE PROPOSALS APPROVED IN JULY 2018
Alluaudite supergroup
A new classification and nomenclature scheme has been approved for the minerals of the alluaudite supergroup. The supergroup is divided into the alluaudite group, the wyllieite group, and the bobfergusonite group.
Discreditation of fupingqiuite
As a side effect of the new classification of alluaudites, the mineral fupingqiuite (IMA 2016-087; see CNMNC Newsletter 35) is not a separate species from varulite and has been discredited.
ERRATUM
The file on jahnsite-(NaMnMg) published in Newsletter 43 was wrong. The correct one is included in this Newsletter.
