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CNMNC Newsletter Juni / Juli 2022
« am: 05 Sep 22, 15:10 »
1 New mineral proposals approved in June 2022

IMA 2021-017a
Ermeloite
Al(PO4)⋅H2O
Erm
Mount Ermelo, Moaña, province of Pontevedra, Galicia, Spain (42∘17′50′′ N, 8∘45′15′′ W)
Guillermo Zaragoza Vérez, Carlos J. Rodríguez Vázquez, Inés Fernández Cereijo, José González del Tánago, Ramón Jiménez Martínez, Bruno Dacuña Mariño, Ramiro Barreiro Pérez, Ezequiel Vázquez Fernández, Montse Gómez Dopazo, and Oscar Lantes-Suárez
Kieserite-Gruppe; Struktur ermittelt
Monoklin
C2/c
a=6.5371(4), b=7.5670(5), c=7.1146(5) Å,
4.653(67), 4.570(33), 3.275(100), 3.197(44), 2.871(25), 2.471(40), 2.449(30), 2.052(15)
Type material is deposited in the mineralogical collections of the Museo de Historia Natural (MHN), University of Santiago de Compostela, Parque Vista Alegre s/n, 15782 Santiago de Compostela, Spain, catalogue number CM64083
Zaragoza Vérez, G., Rodríguez Vázquez, C. J., Fernández Cereijo, I., González del Tánago, J., Jiménez Martínez, R., Dacuña Mariño, B., Barreiro Pérez, R., Vázquez Fernández, E., Gómez Dopazo, M., and Lantes-Suárez, O.: Ermeloite, IMA 2021-017a, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-013
Ziroite
ZrO2
Zro
As inclusions in corundum xenocrysts, Mount Carmel, Haifa district, Israel (32∘44′ N, 35∘03′ E)
Chi Ma, William L. Griffin, Luca Bindi, Fernando Cámara, and Vered Toledo
A dimorph of baddeleyite
Tetragonal
P42/mmc
a=3.60(1), c=5.18(1) Å
2.590(32), 1.800(100), 1.478(30), 1.295(12), 1.273(30), 1.142(14), 1.051(22), 0.908(12)
Type material is deposited in the mineralogical collections of the Università di Milano, Via Mangiagalli 34, 20133 Milano, Italy, registration number MCMGPG-H2021-003
Ma, C., Griffin, W. L., Bindi, L., Cámara, F., and Toledo, V.: Ziroite, IMA 2022-013, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-014
Sassite
Ti3+2Ti4+O5
Ssi
As inclusions in corundum xenocrysts, Mount Carmel, Haifa district, Israel (32∘44′ N, 35∘03′ E)
Chi Ma, William L. Griffin, Luca Bindi, Fernando Cámara, and Vered Toledo
Pseudobrookite-Gruppe
Orthorhombisch
Cmcm
a=3.80(1), b=9.85(1), c=9.99(1) Å
4.925(40), 3.545(100), 2.759(74), 2.209(24), 1.980(26), 1.900(44), 1.651(25), 1.565(27)
Type material is deposited in the mineralogical collections of the Università di Milano, Via Mangiagalli 34, 20133 Milano, Italy, registration number MCMGPG-H2021-004
Ma, C., Griffin, W. L., Bindi, L., Cámara, F., and Toledo, V.: Sassite, IMA 2022-014, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-015
Raydemarkite
MoO3⋅H2O
Rdy
Summit group of claims, near Cookes Peak, Cookes Range, Luna Co., New Mexico, USA (32∘33′47′′ N, 107∘43′48′′ W)
Hexiong Yang, Michael M. Scott, Ronald B. Gibbs, Robert A. Jenkins, Francis X. Sousa, and James A. McGlasson
Synthetische Nachbildung bekannt; Struktur ermittelt
Triklin
P-1
a=7.3750(2), b=3.7092(1), c=6.6833(2) Å, α=108.108(1), β=112.779(2), γ=91.742(1)
6.693(18), 5.759(100), 3.334(40), 3.277(36), 3.181(16), 3.058(18), 2.829(16), 1.852(13)
Type material is deposited in the mineralogical collections of the University of Arizona Alfie Norville Gem and Mineral Museum, catalogue no. 22717 (holotype), and the RRUFF Project, deposition no. R210023 (cotype)
Yang, H., Scott, M. M., Gibbs, R. B., Jenkins, R. A., Sousa, F. X., and McGlasson, J. A.: Raydemarkite, IMA 2022-015, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-016
Cherokeeite
[Pb2Zn(OH)4](SO4)⋅H2O
Chrk
Redmond mine, Haywood Co., North Carolina, USA (35∘40′55′′ N, 83∘00′56′′ W)
Anthony R. Kampf, Jason B. Smith, John M. Hughes, Chi Ma, and Christopher Emproto
Neuer Strukturtyp; Struktur ermittelt
Monoklin
P21/n
a=17.1697(7), b=6.4717(2), c=17.5304(12) Å, β=115.440(8)
5.29(100), 4.42(29), 3.197(71), 3.012(34), 2.969(29), 2.741(29), 2.595(34), 2.348(40)
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 76216, 76217 and 76218
Kampf, A. R., Smith, J. B., Hughes, J. M., Ma, C., and Emproto, C.: Cherokeeite, IMA 2022-016, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-017
Pilipenkoite
KCu(AsO4)⋅H2O
Plp
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 a.s.l.)
Igor V. Pekov, Sergey N. Britvin, Maria G. Krzhizhanovskaya, Atali A. Agakhanov, Natalia N. Koshlyakova, Dmitry I. Belakovskiy, Marina F. Vigasina, Vasiliy O. Yapaskurt, Anna G. Turchkova, and Maria A. Nazarova
Neuer Strukturtyp; Struktur ermittelt
Monoklin
P21/c
a=10.720(1), b=6.9733(6), c=6.8383(7) Å, β=93.535(6)
10.67(100), 4.876(18), 3.006(12), 2.955(12), 2.945(12), 2.924(19), 2.819(10), 2.797(16)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5834/1
Pekov, I. V., Britvin, S. N., Krzhizhanovskaya, M. G., Agakhanov, A. A., Koshlyakova, N. N., Belakovskiy, D. I., Vigasina, M. F., Yapaskurt, V. O., Turchkova, A. G., and Nazarova, M. A.: Pilipenkoite, IMA 2022-017, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-018
Tomsquarryite
NaMgAl3(PO4)2(OH)6⋅8H2O
Tqy
Tom's phosphate quarry, Kapunda, South Australia, Australia (34∘21′33′′ S, 138∘59′17′′ E – type locality); Penrice marble quarry, Angaston, South Australia, Australia (34∘28′54′′ S, 139∘02′48′′ E – cotype locality)
Peter Elliott, Ian E. Grey, W. Gus Mumme, Colin M. MacRae, and Anthony R. Kampf
Chemically und structurally related to elliottite; Struktur ermittelt
Trigonal
R-3m1
a=10.720(1), b=6.9733(6), c=6.8383(7) Å, β=93.535(6)
10.24(100), 5.944(34), 5.643(32), 4.755(23), 3.499(34), 3.015(26), 2.888(33), 1.749(24)
Type material is deposited in the mineralogical collections of the Museum of South Australia, North Terrace, Adelaide, SA 5000, Australia, catalogue numbers G35033 (Tom's holotype), G35034 (Tom's cotype) and G35031 (Penrice cotype)
Elliott, P., Grey, I. E., Mumme, W. G., MacRae, C. M., and Kampf, A. R.: Tomsquarryite, IMA 2022-018, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-019
Heimite
PbCu2(AsO4)(OH)3⋅2H2O
Him
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
Neuer Strukturtyp; Struktur ermittelt
Monoklin
P21/n
a=5.9132(5), b=7.8478(6), c=16.816(1) Å, β=90.007(6)
8.421(72), 5.583(61), 4.073(55), 3.709(55), 3.266(51), 3.206(81), 3.143(100), 2.630(87)
Type material is deposited in the collections of the Mineralogical Museum, Leibniz-Institut zur Analyse des Biodiversitätswandels, Grindelallee 48, 20146 Hamburg, Germany, registration number Ro3701
Malcherek, T., Mihailova, B., Schlüter, J., Roth, P., and Meisser, N.: Heimite, IMA 2022-019, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-020
Ferro-ferri-holmquistite
Li2(Fe2+3Fe3+2)(Si8O22)(OH)2
Ffhlm
Iwagi Islet, Ehime Prefecture, Japan (34∘15′47′′ N, 133∘09′39′′ E)
Mariko Nagashima, Teruyoshi Imaoka, Takashi Kano, Jun-ichi Kimura, Qing Chang, and Takashi Matsumoto
Amphibole-Supergruppe; Struktur ermittelt
Orthorhombisch
Pnma
a=18.5437(2), b=17.9222(1), c=5.3123(1) Å
8.256(100), 4.487(15), 3.346(11), 3.227(6), 3.043(88), 2.745(15), 2.592(3), 2.496(3)
Type material is deposited in the mineralogical collections of the National Museum of Nature and Science, Amakubo 4-1-1, Tsukuba, Ibaraki 305-0005, Japan, specimen number NSM-M49617
Nagashima, M., Imaoka, T., Kano, T., Kimura, J., Chang, Q., and Matsumoto, T.: Ferro-ferri-holmquistite, IMA 2022-020, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-021
Hayelasdiite
[Pb4O1.5(OH)2.5]2[Cu+5(S2O3)4(S2O2OH)2(H2O)]⋅4H2O
Hyl
Redmond mine, Haywood Co., North Carolina, USA (35∘40′55′′ N, 83∘00′56′′ W)
Anthony R. Kampf, Jason B. Smith, John M. Hughes, Chi Ma, and Christopher Emproto
Chemically und structurally related to steverustite; Struktur ermittelt
Triklin
P-1
a=7.5209(1), b=14.9345(3), c=17.989(1) Å, α=106.727(8), β=90.966(6), γ=90.966(6)
14.38(84), 6.88(72), 3.797(54), 3.331(100), 3.243(55), 3.006(73), 2.941(72), 2.868(58)
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 76219
Kampf, A. R., Smith, J. B., Hughes, J. M., Ma, C., and Emproto, C.: Hayelasdiite, IMA 2022-021, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-022
Mazorite
Ba3(PO4)2
Mzo
Hatrurim Basin, Hatrurim Complex, Israel (31∘11′09′′ N, 35∘16′27′′ E)
Rafał Juroszek, Irina O. Galuskina, Biljana Krüger, Hannes Krüger, Yevgeny Vapnik, and Evgeny Galuskin
Das Ba Analog von tuite, und the P Analog von gurimite; Struktur ermittelt
Trigonal
R-3m
a=5.6617(3), c=21.170(2) Å
3.597(16), 3.204(100), 2.831(82), 2.224(14), 2.122(36), 1.943(21), 1.698(24), 1.394(13)
Type material is deposited in the mineralogical collections of the Natural History Museum Bern, Bernastrasse 15, CH-3005, Bern, Switzerland, inventory number NMBE 44297
Juroszek, R., Galuskina, I. O., Krüger, B., Krüger, H., Vapnik, Y., and Galuskin, E.: Mazorite, IMA 2022-022, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-024
Louisfuchsite
Ca2(Mg4Ti2)(Al4Si2)O20
Lfu
NWA 4964 CK meteorite, found in 2007 from Northwest Africa
Chi Ma, and Alexander N. Krot
Sapphirine-Supergruppe
Triklin
P-1
a=10.37(1), b=10.76(1), c=8.90(1) Å, α=106.0(1), β=96.0(1), γ=124.7(1)
3.443(36), 3.133(43), 2.940(47), 2.685(65), 2.545(100), 2.424(31), 2.105(83), 2.090(88)
Type material is deposited in the meteorite collections at Hawaii Institute of Geophysics and Planetology, University of Hawaii, 1680 East-West Road, Honolulu, Hawaii 96822, USA, registration number NWA 4964A
Ma, C., and Knot, A. N.: Louisfuchsite, IMA 2022-024, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-025
Zincochenite
Pb4Zn(OH)6(SO4)2
Zche
Redmond mine, Haywood Co., North Carolina, USA (35∘40′55′′ N, 83∘00′56′′ W)
Anthony R. Kampf, Jason B. Smith, John M. Hughes, Chi Ma, and Christopher Emproto
Das Zn Analog von chenite; Struktur ermittelt
Triklin
P-1
a=5.883(4), b=7.938(5), c=7.948(5) Å, α=110.511(12), β=98.497(10), γ=98.497(10)
5.64(53), 4.29(56), 3.602(100), 3.423(80), 2.848(45), 2.801(41), 2.744(44), 2.600(40)
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 76220, 76221 and 76222
Kampf, A. R., Smith, J. B., Hughes, J. M., Ma, C., and Emproto, C.: Zincochenite, IMA 2022-025, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2021-006b
Tianhongqiite
CrTiO3(OH)
Thq
Luobusa Cr-Fe deposit, Qusum County, Tibet, China (29∘10′58.0′′ N, 92∘17′47.6′′ E)
Xiangping Gu, Rujun Chen, Hexiong Yang, Shuangmeng Zhai, Xiande Xie, and Kai Li
Das Cr Analog von tivanite; Struktur ermittelt
Monoklin
P21/n
a=7.688(1), b=4.5267(7), c=7.443(1) Å, β=97.62(1)
3.846(100), 2.774(94), 2.616(70), 2.495(41), 2.184(37), 1.674(77), 1.654(34), 1.620(20)
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 M16116
Gu, X., Chen, R., Yang, H., Zhai, S., Xie, X., and Li, K.: Tianhongqiite, IMA 2021-006b, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

2 New mineral proposals approved in July 2022

IMA 2022-026
Selsurtite
(H3O)12Na3(Ca3Mn3)(Na2Fe)Zr3Si[Si24O69(OH)3](OH)Cl⋅H2O
Ssu
Flora mountain, northern spur of the Selsurt mountain, Lovozero district, Murmansk Oblast, Russia (67∘54′42′′ N, 34∘48′04′′ E)
Nikita V. Chukanov, Sergey M. Aksenov, Olga N. Kazheva, Igor V. Pekov, Dmitry A. Varlamov, Marina F. Vigasina, Dmitry I. Belakovskiy, Svetlana A. Vozchikova, and Sergey N. Britvin
Eudialyte-Gruppe; Struktur ermittelt
Trigonal
R3
a=14.1475(7), c=30.361(1) Å
11.38(56), 7.08(59), 5.69(36), 4.318(72), 3.793(36), 3.544(72), 2.970(100), 2.844(100)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5843/1
Chukanov, N. V., Aksenov, S. M., Kazheva, O. N., Pekov, I. V., Varlamov, D. A., Vigasina, M. F., Belakovskiy, D. I., Vozchikova, S. A., and Britvin, S. N.: Selsurtite, IMA 2022-026, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-027
Mizraite-(Ce)
Ce(Al11Mg)O19
Miz-Ce
As inclusions in corundum xenocrysts, Mount Carmel, Haifa district, Israel (32∘44′ N, 35∘03′ E)
Chi Ma, William L. Griffin, Luca Bindi, Fernando Cámara, and Vered Toledo
Magnetoplumbite-Gruppe
Hexagonal
P63/mmc
a=5.61(1), c=22.29(1) Å
11.14(61), 2.805(56), 2.663(72), 2.505(100), 2.133(52), 1.591(35), 1.556(41), 1.402(52)
Type material is deposited in the mineralogical collections of the Università di Milano, Via Mangiagalli 34, 20133 Milano, Italy, registration number MCMGPG-H2022-005
Ma, C., Griffin, W. L., Bindi, L., Cámara, F., and Toledo, V.: Mizraite-(Ce), IMA 2022-027, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-028
Boojumite
Pb8O4(OH)2(S2O3)3
Bjm
Redmond mine, Haywood Co., North Carolina, USA (35∘40′55′′ N, 83∘00′56′′ W)
Anthony R. Kampf, Jason B. Smith, John M. Hughes, Chi Ma, and Christopher Emproto
Neuer Strukturtyp; Struktur ermittelt
Orthorhombisch
Pnma
a=14.0103(8), b=20.553(1), c=7.2668(5) Å
6.52(41), 3.559(38), 3.411(15), 3.160(32), 2.911(100), 2.694(14), 1.799(24), 1.613(14)
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 numbers 76225 (holotype) and 76226 (cotype)
Kampf, A. R., Smith, J. B., Hughes, J. M., Ma, C., and Emproto, C.: Boojumite, IMA 2022-028, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-030
Finescreekite
[Pb4(OH)4](S2O3)2
Fnck
Redmond mine, Haywood Co., North Carolina, USA (35∘40′55′′ N, 83∘00′56′′ W)
Anthony R. Kampf, Jason B. Smith, John M. Hughes, Chi Ma, and Christopher Emproto
Chemically und structurally related to cubothioplumbite und hexathioplumbite; Struktur ermittelt
Orthorhombisch
P212121
a=8.2330(9), b=10.713(1), c=14.826(3) Å
6.00(78), 3.846(48), 3.701(62), 3.436(85), 3.007(100), 2.644(82), 2.045(43), 1.780(43)
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 76227
Kampf, A. R., Smith, J. B., Hughes, J. M., Ma, C., and Emproto, C.: Finescreekite, IMA 2022-030, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-032
Kennygayite
[Pb4O2(OH)2](SO4)
Kgy
Redmond mine, Haywood Co., North Carolina, USA (35∘40′55′′ N, 83∘00′56′′ W)
Anthony R. Kampf, Jason B. Smith, John M. Hughes, Chi Ma, and Christopher Emproto
Das sulfate Analog von sidpietersite; Struktur ermittelt
Triklin
P-1
a=6.3785(5), b=7.4519(6), c=10.3112(8) Å, α=75.234(5), β=79.388(6),​ γ=88.175(6)
9.90(86), 5.78(43), 3.291(100), 3.149(98), 3.114(65), 2.892(68), 2.721(64), 1.685(40)
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 76229, 76230 and 76231
Kampf, A. R., Smith, J. B., Hughes, J. M., Ma, C., and Emproto, C.: Kennygayite, IMA 2022-032, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-033
Evanichite
Pb6Cr3+(Cr6+O4)2(SO4)(OH)7FCl
Eva
Mammoth-Saint Anthony mine, Tiger, Pinal Co., Arizona, USA (32∘42′23′′ N, 110∘40′59′′ W)
Hexiong Yang, Ronald B. Gibbs, Francis X. Sousa, and Robert T. Downs
Neuer Strukturtyp; Struktur ermittelt
Trigonal
P3
a=7.7588(5), c=9.6161(6) Å
4.805(30), 3.599(100), 3.023(45), 2.473(42), 2.245(28), 2.045(17), 2.033(18), 1.903(12)
Type material is deposited in the mineralogical collections of the University of Arizona Alfie Norville Gem and Mineral Museum, 115 N Church Ave Ste 121, Tucson, AZ 85701, USA, catalogue no. 22718 (holotype), and the RRUFF Project, deposition no. R220006 (cotype)
Yang, H., Gibbs, R. B., Sousa, F. X., and Downs, R. T.: Evanichite, IMA 2022-033, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-034
Iskandarovite
Sb6O7(SO4)2
Iska
Near the Ravat village, Kuhi-Malik area, Fan-Jagnob lignite basin, Tajikistan (39∘11′02′′ N, 68∘35′11′′ E)
Mirak A. Mirakov, Leonid A. Pautov, Oleg I. Siidra, Vladimir Y. Karpenko, Pavel Y. Plechov, and Artem S. Borisov
Synthetische Nachbildung bekannt; Struktur ermittelt
Orthorhombisch
Ccc2
a=12.0402(3), b=18.9599(5), c=5.8638(2) Å
10.1(40), 5.08(50), 3.26(25), 3.146(100), 2.933(73), 2.372(33), 1.601(32), 1.532(30)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5845/1
Mirakov, M. A., Pautov, L. A., Siidra, O. I., Karpenko, V. Y., Plechov, P. Y., and Borisov, A. S.: Iskandarovite, IMA 2022-034, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.

IMA 2022-036
Toledoite
TiFeSi
Tld
As inclusions in corundum xenocrysts, Mount Carmel, Haifa district, Israel (32∘44′ N, 35∘03′ E)
Chi Ma, William L. Griffin, Luca Bindi, and Fernando Cámara
Synthetische Nachbildung bekannt
Orthorhombisch
Ima2
a=7.00(1), b=10.83(1), c=6.29(1) Å
2.339(44), 2.333(100), 2.147(89), 2.141(38), 2.058(36), 2.052(33), 2.048(34), 1.750(36)
Type material is deposited in the mineralogical collections of the Università di Milano, Via Mangiagalli 34, 20133 Milano, Italy, registration number MCMGPG-H2021-006
Ma, C., Griffin, W. L., Bindi, L., and Cámara, F.: Toledoite, IMA 2022-036, in: CNMNC Newsletter 68, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-385-2022, 2022.


3.2 Columbite supergroup


The columbite supergroup has been established. It includes 39 oxide minerals based on the general stoichiometry M:O = 1:2 and structurally characterized by zig-zag chains of edge-sharing octahedra. The supergroup is divided into the following: ixiolite group, wolframite group, samarskite group, columbite group, and wodginite group. A number of actions were taken on some of the minerals belonging to the supergroup; the most relevant among them are as follows:

    Polycrase-(Y) has been discredited, as it is identical to euxenite-(Y), and the latter mineral has historical priority.

    The old “ixiolite” has been redefined and results now in two distinct mineral species: ixiolite-(Mn2+), with end-member formula (Ta2/3Mn1/3)O2, and ixiolite-(Fe2+), with end-member formula (Ta2/3Fe1/3)O2. The type locality for both is Skogsböle, Kimito Island, Finland.

3.3 Revised formula for shkatulkalite
, Na2Nb2Na3Ti(Si2O7)2O2(FO)(H2O)4(H2O)3

In the IMA List of Minerals the chemical formula of shkatulkalite is given as Na10MnTi3Nb3(Si2O7)6(OH)2F ⋅ 12H2O. However, a crystal structure study carried out on holotype material (Can. Mineral., 60, 493–512, 2022) clearly shows that Mn is not the dominant constituent at any crystallographic site. Accordingly, the end-member formula should be written as Na2Nb2Na3Ti(Si2O7)2O2(FO)(H2O)4(H2O)3. This formula matches the general formula of the minerals of the lamprophyllite group of the seidozerite supergroup, to which shkatulkalite belongs. This is an executive decision taken by the officers of the IMA-CNMNC.

Offline Stefan

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Re: CNMNC Newsletter Juni / Juli 2022
« Antwort #1 am: 05 Sep 22, 15:22 »
Bei Tomsquarryit scheinen mir die Angaben

Zitat
Trigonal
R-3m1
a=10.720(1), b=6.9733(6), c=6.8383(7) Å, β=93.535(6)

nicht richtig.

Laut Veröffentlichung

Zitat
Elliot, P., Grey, I.E., Mumme, W.G., MacRae, C.M., Kampf, A.R. - Tomsquarryite, NaMgAl3(PO4)2(OH)6·8H2O, a new crandallite-derivative mineral from Tom's phosphate quarry, Kapunda, South Australia. European Journal of Mineralogy, 34 (2022), 375–383. https://ejm.copernicus.org/articles/34/375/2022/

müssten sie vielmehr

Zitat
space group R–3m, a=6.9865(5) Å, c=30.634(3) Å

lauten.

Offline guefz

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Re: CNMNC Newsletter Juni / Juli 2022
« Antwort #2 am: 05 Sep 22, 15:51 »
Die Daten sind offensichtlich via c&p von dem Mineral eins höher in der Liste übernommen worden. Kopieren will halt gelernt sein...

 

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