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CNMNC Newsletter 58 Oktober / November 2020

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Stefan:
New mineral proposals approved in October 2020

IMA 2019-100
Moxuanxueite
Na2Ca4ZrCa(Si2O7)2F4
Gejiu intrusion, Honghe Hani and Yi Autonomous Prefecture, Yunnan Province, China (23∘29′40′′ N, 103∘4′41′′ E)
Kai Qu, Guochen Dong, Ting Li, Guang Fan, Yufei Wang, Yinhang Cheng, Ruoshi Jin, Xiaoming Sun, Fengqing Zhao, and Yanjuan Wang
Wöhlerite-Gruppe; Struktur ermittelt
Triklin
P-1
a= 10.9527(3), b= 10.9289(4), c= 7.3592(4) Å, α= 109.414(2), β= 109.889(2), γ= 83.416(2)°
3.264(32), 2.992(100), 2.863(58), 2.025(38), 1.947(14), 1.798(57), 1.699(25), 1.130(16)
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 M16103
Qu, K., Dong, G., Li, T., Fan, G., Wang, Y., Cheng, Y., Jin, R., Sun, X., Zhao, F., and Wang, Y. L.: Moxuanxueite, IMA 2019-100, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-043
Kuvaevite
Ir5Ni10S16
Sisim Placer Zone, river Sisim basin, southern portion of Krasnoyarskiy Kray, central Siberia, not far from Krasnoyarsk, southwestern Eastern Sayans, Russia
Andrei Y. Barkov, Nadezhda D. Tolstykh, Nobumichi Tamura, Robert F. Martin, and Chi Ma
Das Ir-dominant Analog von torryweiserite (IMA No. 2020-048)
Trigonal
R-3m
a= 7.079(5), c= 34.34(1) Å
3.053(43), 3.010(100), 2.996(52), 2.799(50), 2.495(31), 1.921(41), 1.770(73), 1.758(66)
Type material is deposited in the collections of the Mineralogical Museum, Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, Ak. Koptyug Ave. 3, Novosibirsk 630090, Russia, catalogue number III-102/1
Barkov, A. Y., Tolstykh, N. D., Tamura, N., Martin, R. F., and Ma, C.: Kuvaevite, IMA 2020-043, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-044
Whiterockite
CaMgMn3+3O2(PO4)2(CO3)F·5H2O
White Rock no. 2 quarry, Bimbowrie Conservation Park, 24 km N of Olary, South Australia, Australia (32∘04′ S, 140∘19′ E)
Peter Elliott and Anthony R. Kampf
Strukturell verwandt mit jörgkellerite; Struktur ermittelt
Monoklin
C2∕m
a= 11.112(2), b= 6.455(1), c= 10.667(2) Å, β= 102.61(3)∘
10.385(100), 5.247(83), 2.760(46), 2.625(52), 2.012(23), 2.069(23), 1.741(35), 1.610(38)
Type material is deposited in the mineralogical collections of the South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia, registration number G34889
Elliott, P. and Kampf, A. R.: Whiterockite, IMA 2020-044, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-048
Torryweiserite
Rh5Ni10S16
Marathon deposit, Coldwell Complex, Ontario, Canada (48∘48′07′′ N, 86∘18′35′′ W)
Andrew M. McDonald, Ingrid M. Kjarsgaard, Luca Bindi, Kirk C. Ross, Doreen E. Ames, Louis J. Cabri, and David J. Good
Das Rh-dominant Analog von kuvaevite (IMA No. 2020-043); Struktur ermittelt
Trigonal
R-3m
a= 7.060(1), c= 34.271(7) Å
3.080(33), 3.029(58), 2.817(23), 1.933(30), 1.780(100), 1.307(23), 1.251(49), 1.023(35)
Type material is deposited in the mineralogical collections of the Canadian Museum of Nature, 1740 Pink Road, Gatineau, Quebec, Canada, catalogue numbers 87179 and 87181
McDonald, A. M., Kjarsgaard, I. M., Bindi, L., Ross, K. C., Ames, D. E., Cabri, L. J., and Good, D. J.: Torryweiserite, IMA 2020-048, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-051
Vargite
Cu2Mn3(AsO4)2(OH)4(H2O)4
Långban deposit, Filipstad district, Värmland county, Bergslagen ore province, Sweden (59.85∘ N, 14.26∘ E; 215 m a.s.l.)
Jörgen Langhof, Luca Bindi, Andreas Karlsson, Dan Holtstam, and Erik Jonsson
Das Mn Analog von guanacoite; Struktur ermittelt
Monoklin
P21∕c
a= 5.625(1), b= 17.452(5), c= 6.905(2) Å, β= 100.21(5)∘
8.726(100), 4.558(20), 4.419(50), 4.363(46), 3.106(33), 2.774(35), 2.691(28), 2.345 (25)
Type material is deposited in the mineralogical collections of the Department of Geosciences, Swedish Museum of Natural History, Box 50007, SE-10405 Stockholm, Sweden, collection number GEO-NRM 19370307
Langhof, J., Bindi, L., Karlsson, A., Holtstam, D., and Jonsson, E.: Vargite, IMA 2020-051, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32- 645-2020, 2020.

IMA 2020-052
Galeaclolusite
Al6(AsO4)3(OH)9(H2O)4·8H2O
Salle B, South mine, Cap Garonne, Var, France (43∘04′53′′ N, 6∘01′55′′ E)
Ian E. Grey, George Favreau, Stuart J. Mills, W. Gus Mumme, Catherine Bougerol, Helen E.A. Brand, Anthony R. Kampf, Colin M. MacRae, and Finlay Shanks
Closely related to bulachite; Struktur ermittelt
Orthorhombisch
Pnma
a= 19.855(4), b= 17.693(1), c= 7.7799(5) Å
9.973(100), 8.851(60), 7.118(36), 6.696(56), 6.617(50), 6.126(38), 3.506(74), 3.326(66)
Type material is deposited in the mineralogical collections of the Museum Victoria, GPO Box 666, Melbourne, Victoria 3001, Australia, registration number M55455 (holotype), and the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 74874 (cotype)
Grey, I. E., Favreau, G., Mills, S. J., Mumme, W. G., Bougerol, C., Brand, H. E. A., Kampf, A. R., MacRae, C. M., and Shanks, F.: Galeaclolusite, IMA 2020-052, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-054
Ermakovite
(NH4)(As2O3)2Br
Near the Ravat Kishlak (village), Kuhi-Malik area, Fan–Jagnob lignite basin, about 100 km N of Dushanbe, Tajikistan (39∘11′02′′ N, 68∘35′11′′ E)
Vladimir Y. Karpenko, Leonid A. Pautov, Oleg I. Siidra, and Mirak A. Mirakov
Das Br Analog von mauriziodiniite; Struktur ermittelt
Hexagonal
P6/mmm
a= 5.271(3), c= 9.157(6) Å
9.160(80), 4.560(90), 3.228(100), 2.629(80), 2.522(60), 2.276(40), 1.817(40), 1.608(40)
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 5525/1
Karpenko, V. Y., Pautov, L. A., Siidra, O. I., and Mirakov, M. A.: Ermakovite, IMA 2020-054, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2019-009a
Palladothallite
Pd3Tl
Monchetundra layered intrusion, borehole 1818, Kola Peninsula, Russia (67∘52′24′′ N, 32∘47′10′′ E; depth 36.1 m)
Tatiana L. Grokhovskaya, Anna Vymazalová, František Laufek, and Chris J. Stanley
Synthetische Nachbildung bekannt
Tetragonal
I4/mmm
a= 4.11, c= 15.3 Å
2.313(100), 2.053(34), 1.913(13), 1.452(9), 1.400(15), 1.230(18), 1.168(7), 1.156(7)
Type material is deposited in the mineralogical collections of the Department of Earth Sciences, Natural History Museum, Cromwell Road, South Kensington, London SW7 5BD, United Kingdom, catalogue number BM2019,1
Grokhovskaya, T. L., Vymazalová, A., Laufek, F., and Stanley, C. J.: Palladothallite, IMA 2019-009a, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020. 2 New mineral proposals approved in November 2020 Back to top

New mineral proposals approved in November 2020

IMA 2020-053
Kernowite
Cu2Fe3+(AsO4)(OH)4·4H2O
Wheal Gorland, Parish of St. Day, Cornwall, United Kingdom (50∘14′30′′ N, 5∘10′58′′ W)
Mike S. Rumsey, Mark D. Welch, John Spratt, Annette Kleppe, and Martin Števko
Das Fe3+ Analog von liroconite; Struktur ermittelt
Monoklin
I2∕a
a= 12.9243(4), b= 7.5401(3), c= 10.0271(3) Å, β= 91.267(3)∘
6.560(100), 6.067(91), 3.970(28), 3.066(41), 3.035(33), 2.841(30), 2.728(27), 2.460(20)
Type material is deposited in the mineralogical collections of the Natural History Museum, Cromwell Road, South Kensington, London SW7 5BD, United Kingdom, catalogue no. BM1964,R8908
Rumsey, M. S., Welch, M. D., Spratt, J., Kleppe, A., and Števko, M.: Kernowite, IMA 2020-053, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-055
Alicewilsonite-(YCe)
Na2Sr2YCe(CO3)6·3H2O
Poudrette (Demix) quarry, Mont Saint-Hilaire, Quebec, Canada (45∘33′46′′ N, 73∘08′30′′ W)
Inna Lykova, Ralph Rowe, Glenn Poirier, Henrik Friis, and Kate Helwig
Mckelveyite-Gruppe; Struktur ermittelt
Triklin
P1
a= 8.9950(4), b= 9.0096(3), c= 6.7676(4) Å, α= 102.745(4), β= 116.324(5), γ= 60.011(5)∘
6.07(31), 4.372(100), 4.037(25), 3.201(25), 2.831(67), 2.601(39), 2.236(24), 1.974(24)
Type material is deposited in the mineralogical collections of the Canadian Museum of Nature, 240 McLeod Street, Ottawa, Ontario, Canada, catalogue number CMNMC 53660
Lykova, I., Rowe, R., Poirier, G., Friis, H., and Helwig, K.: Alicewilsonite-(YCe), IMA 2020-055, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-056
Princivalleite
Na(Mn2Al)Al6(Si6O18)(BO3)3(OH)3O
Along the cut of a small road on the eastern side of the Curiglia Village, Veddasca Valley, Luino (Varese), Lombardy, Italy (46∘03′30.74′′ N, 8∘48′24.47′′ E)
Ferdinando Bosi, Federico Pezzotta, Henrik Skobgy, Alessandra Altieri, Ulf Hålenius, Gioacchino Tempesta, and Jan Cempírek
Tourmaline-Supergruppe; Struktur ermittelt
Trigonal
R3m
a= 15.9155(2), c= 7.1166(1) Å
4.198(43), 3.974(50), 3.441(67), 2.934(78), 2.567(100), 2.028(51), 1.908(41), 1.647(34)
Type material is deposited in the mineralogical collections of the Museo Civico di Storia Naturale, Corso Venezia 55, 20121 Milan, Italy, catalogue number M38850
Bosi, F., Pezzotta, F., Skobgy, H., Altieri, A., Hålenius, U., Tempesta, G., and Cempírek, J.: Princivalleite, IMA 2020-056, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-057
Ferriprehnite
Ca2Fe3+(AlSi3)O10(OH)2
Kouragahana, Kitaura, Mihonoseki-cho, Matsue City, Shimane Peninsula, Shimane Prefecture, Japan
Mariko Nagashima, Daisuke Nishio-Hamane, Shuichi Ito, and Takahiro Tanaka
Das Fe3+ Analog von prehnite; Struktur ermittelt
Orthorhombisch
Pma2
a= 18.615(1), b= 5.4882(3), c= 4.6735(3) Å
4.674(32), 3.558(32), 3.495(54), 3.324(45), 3.298(43), 3.087(100), 2.572(77), 1.779(45)
Type material is deposited in the mineralogical collections of the National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba 305-0005, Japan, specimen number NSMM47662
Nagashima, M., Nishio-Hamane, D., Ito, S., and Tanaka, T.: Ferriprehnite, IMA 2020-057, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32- 645-2020, 2020.

IMA 2020-058
Ferro-fluoro-edenite
NaCa2Fe2+5(Si7AlO22)F2
La Fossa crater, Vulcano Island, Messina province, Sicily, Italy (38∘23′59′′ N, 14∘57′36′′ E)
Italo Campostrini, Francesco Demartin, Pietro Vignola, and Federico Pezzotta
Amphibole-Supergruppe; Struktur ermittelt
Monoklin
C2∕m
a= 9.913(2), b= 18.174(4), c= 5.294(1) Å, β= 104.85(3)∘
8.54(100), 4.506(16), 3.154(16), 2.833(43), 2.057(14), 1.910(12), 1.662(15), 1.517(11)
Type material is deposited in the mineralogical collections of the Museo Civico di Storia Naturale, Corso Venezia 55, 20121 Milan, Italy, catalogue number M38849
Campostrini, I., Demartin, F., Vignola, P., and Pezzotta, F.: Ferro-fluoroedenite, IMA 2020-058, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-059
Nakkaalaaqite
K2[Na3Ca]LiCa2Ti2Be4Si12O38
Mount Nakkaalaaq, Ilímaussaq Alkaline Complex, Greenland (60∘58′56′′ N, 45∘54′58′′ W)
Henrik Friis, Glenn Poirier, Tom Andersen, and Robert A. Gault
Das Li Analog von odintsovite; Struktur ermittelt
Orthorhombisch
Fddd
a= 13.1029(2), b= 14.2468(2), c= 33.6099(5) Å
9.249(100), 4.424(39), 4.159(40), 3.278(84), 3.162(41), 3.046(41), 2.928(32), 2.412(34)
Type material is deposited in the mineralogical collections of the Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5–7, 1350 Copenhagen K, Denmark, catalogue number 2000.280 (optical study), the Natural History Museum, University of Oslo, P.O. Box 1172, Blindern, 0318 Oslo, Norway, catalogue number KNR 44239 (PXRD and SCXRD), and the Canadian Museum of Nature, 240 McLeod Street, Ottawa, Ontario, Canada, catalogue number CMNMC 87569 (EMPA and LA-ICP-MS)
Friis, H., Poirier, G., Andersen, T., and Gault, R. A.: Nakkaalaaqite, IMA 2020- 059, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645- 2020, 2020.

IMA 2020-060
Grimmite
NiCo2S4
At the mine dump of the shaft no. 9 – Jerusalem, Příbram ore district, central Bohemia, Czech Republic (49∘40′12.806′′ N, 14∘01′48.102′′ E)
Pavel Škácha, Jiří Sejkora, Jakub Plášil, Zdeněk Dolníček, and Jana Ulmanová
Spinel-Supergruppe; Struktur ermittelt
Kubisch
Fd-3m
a= 9.3933(9) Å
3.321(75), 2.712(7), 2.348(81), 2.155(6), 1.917(27), 1.660(100), 1.485(11), 1.356(15)
Cotype material is deposited in the mineralogical collections of the Mining museum Příbram, Hynka Kličky Place 293, 26101 Příbram VI, Czech Republic, catalogue number 3/2020, and the Department of Mineralogy and Petrology, National Museum in Prague, Cirkusová 1740, 19300 Prague 9, Czech Republic, catalogue number P1P 49/2020
Škácha, P., Sejkora, J., Plášil, J., Dolníček, Z., and Ulmanová, J.: Grimmite, IMA 2020-060, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-061
Zvĕstovite-(Zn)
Ag6(Ag4Zn2)As4S13
At the mine dump of the small deposit of Zvěstov (Stříbrnice), 1200 m NNE of the village of Zvěstov, 10 km SW of Vlašim, central Bohemia, Czech Republic (49∘38′39.069′′ N, 14∘47′51.993′′ E)
Jiri Sejkora, Cristian Biagioni, Luboš Vrtiška, and Yves Moëlo
Tetrahedrite-Gruppe; Struktur ermittelt
Kubisch
I-43m
a= 10.850(2) Å
7.672(5), 4.429(4), 3.132(100), 2.712(22), 2.128(5), 1.981(11), 1.918(32), 1.636(15)
Type material is deposited in the mineralogical collections of the Department of Mineralogy and Petrology, National Museum in Prague, Cirkusová 1740, 19300 Prague 9, Czech Republic, catalogue number P1P 50/2020, and the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), catalogue number 19921
Sejkora, J., Biagioni, C., Vrtiška, L., and Moëlo, Y.: Zvĕstovite-(Zn), IMA 2020-061, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32- 645-2020, 2020.

IMA 2020-062
Kenoargentotennantite-(Fe)
Ag6(Cu4Fe2)As4S12
Pollone mine, Valdicastello Carducci, Pietrasanta (LU), Apuan Alps, Tuscany, Italy (43∘57'47′′ N, 10∘16'19′′ E)
Cristian Biagioni, Jiri Sejkora, Yves Moëlo, Emil Makovicky, Marco Pasero, and Zdeněk Dolníček
Tetrahedrite-Gruppe; Struktur ermittelt
Kubisch
I-43m
a= 10.3740(5) Å
7.336(13), 2.995(100), 2.594(18), 2.212(7), 2.035(7), 1.894(8), 1.834(36), 1.564(18)
Type material is deposited in the mineralogical collections of the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), catalogue number 19920
Biagioni, C., Sejkora, J., Moëlo, Y., Makovicky, E., Pasero, M., and Dolníček, Z.: Kenoargentotennantite-(Fe), IMA 2020-062, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-063
Tennantite-(Hg)
Cu6(Cu4Hg2)As4S13
Lengenbach quarry, Imfeld, Binn Valley, Canton Valais, Switzerland (46∘21′54′′ N, 8∘13′15′′ E)
Cristian Biagioni, Jiri Sejkora, Thomas Raber, Philippe Roth, Yves Moëlo, Zdeněk Dolníček, and Marco Pasero
Tetrahedrite-Gruppe; Struktur ermittelt
Kubisch
I-43m
a= 10.455(7) Å
4.268(6), 3.018(100), 2.614(22), 2.464(4), 2.050(4), 1.909(10), 1.848(38), 1.576(20)
Type material is deposited in the mineralogical collections of the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), catalogue number 19919
Biagioni, C., Sejkora, J., Raber, T., Roth, P., Moëlo, Y., Dolníček, Z., and Pasero, M.: Tennantite-(Hg), IMA 2020-063, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-064
Odikhinchaite
Na9Sr3[(H2O)2Na]Ca6Mn3Zr3NbSi(Si24O72)O(OH)3 (CO3)·H2O
Odikhincha ultrabasic complex, Maymecha–Kotuy alkaline province, Kotuy River basin, Taymyr, Krasnoyarskiy Kray, Siberia, Russia (70∘53′ N, 101∘16′ E)
Yuliya D. Gritsenko, Nikita V. Chukanov, Sergey M. Aksenov, Igor V. Pekov, Dmitry A. Varlamov, Leonid A. Pautov, Svetlana A. Vozchikova, and Sergey N. Britvin
Eudialyte-Gruppe; Struktur ermittelt
Trigonal
R3m
a= 14.2179(1), c= 30.3492(3) Å
11.42(64), 5.71(39), 4.309(41), 3.405(53), 3.208(45), 3.167(44), 2.978(100), 2.858(86)
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration numbers 5587/1 and 5588/1
Gritsenko, Y. D., Chukanov, N. V., Aksenov, S. M., Pekov, I. V., Varlamov, D. A., Pautov, L. A., Vozchikova, S. A., and Britvin, S. N.: Odikhinchaite, IMA 2020-064, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-065
Bainbridgeite-(YCe)
Na2Ba2YCe(CO3)6·3H2O
Poudrette (Demix) quarry, Mont Saint-Hilaire, Quebec, Canada (45∘33′46′′ N, 73∘08′30′′ W)
Inna Lykova, Ralph Rowe, Glenn Poirier, Henrik Friis, and Kate Helwig
Mckelveyite-Gruppe; Struktur ermittelt
Triklin
P1
a= 9.0874(4), b= 9.0877(4), c= 6.8826(3) Å, α= 102.912(4), β= 116.208(4), γ= 60.322(4)∘
6.22(4), 4.43(100), 4.09(37), 3.263(26), 2.888(67), 2.633(38), 2.263(23), 2.010(20)
Type material is deposited in the mineralogical collections of the Canadian Museum of Nature, 240 McLeod Street, Ottawa, Ontario, Canada, catalogue number CMNMC 46324
Lykova, I., Rowe, R., Poirier, G., Friis, H., and Helwig, K.: Bainbridgeite-(YCe), IMA 2020-065, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-012a
Davemaoite
CaSiO3
As inclusions in a diamond from the Orapa kimberlite pipe, Orapa, Botswana (21∘18′24′′ S, 25∘22′12′′ E)
Oliver Tschauner, Shichun Huang, Shuying Yang, and Munir Humayun
Perovskite-Gruppe; Struktur ermittelt
Kubisch
Pm-3m
a= 3.591(2) Å
2.539(100), 2.073(50), 1.795(84), 1.466(43), 1.270(48), 1.136(19), 1.037(15), 0.960(22)
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 74541
Tschauner, O., Huang, S., Yang, S., and Humayun, M.: Davemaoite, IMA 2020-012a, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm32-645-2020, 2020.

IMA 2020-030a
Oreillyite
Cr2N
Kishon Mid Reach Zone 1, Kishon River, Haifa district, Israel
Luca Bindi, Martin Saunders, Sarah E. M. Gain, Fernando Cámara, William L. Griffin, and Vered Toledo
Synthetische Nachbildung bekannt; Struktur ermittelt
Trigonal
P-31m
a= 4.7853(5), c= 4.4630(6) Å
2.405(25), 2.239(38), 2.119(82), 2.119(100), 1.639(18), 1.389(29), 1.180(20), 0.871(18)
Type material is deposited in the mineralogical collections of the Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Perth, WA 6009, Australia, catalogue number 1174-C_FF, and the Museo di Storia Naturale, Università di Firenze, Via La Pira 4, I-50121, Florence, Italy, catalogue number 3364/I
Bindi, L., Saunders, M., Gain, S. E. M., Cámara, F., Griffin, W. L., and Toledo, V.: Oreillyite, IMA 2020-030a, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

IMA 2020-008b
Alumino-oxy-rossmanite
Al3Al6(Si5AlO18)(BO3)3(OH)3O
Moldanubian pegmatite, Hengl quarry, ca. 800 m NE of the village of Eibenstein an der Thaya, Waidhofen an der Thaya district, Austria (48∘50′56′′ N, 15∘34′56′′ E)
Andreas Ertl, John M. Hughes, Stefan Prowatke, Thomas Ludwig, Christian L. Lengauer, and Hans-Peter Meyer
Tourmaline-Supergruppe; Struktur ermittelt
Trigonal
R3m
a= 15.8031(3), c= 7.0877(3) Å
6.294(28), 4.178(61), 3.951(85), 3.431(55), 2.924(78), 2.553(100), 2.020(39), 1.899(30)
Type material is deposited in the mineralogical collections of the National Museum of Natural History, Smithsonian Institution, 10th St. & Constitution Ave. NW, Washington, DC 20560, USA, sample NMNH 173824, the Mineralogical and Geological Museum, Harvard University, 26 Oxford St., Cambridge, MA 02138, USA, sample 134790, and the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, sample 93533
Ertl, A., Hughes, J. M., Prowatke, S., Ludwig, T., Lengauer, C. L., and Meyer, H.-P.: Alumino-oxy-rossmanite, IMA 2020-008b, in: CNMNC Newsletter 58, Eur. J. Mineral., 32, https://doi.org/10.5194/ejm-32-645-2020, 2020.

Uwe Kolitsch:
Grimmit (NiCo2S4) kommt sicher öfters vor in D - man sollte ich die publizierten (oder unpublizierten) Analysen mal genauer anschauen. Ein paar Literaturzitate auf Mindat ergänzt.

Das neue Fahlerzgruppen-Glied Zvěstovit-(Zn) ist als "Argentotennanit" von der Grube Frische Lutter beschrieben worden (Mindat upgedatet).

guefz:
Müsste für letzteres nicht eine neue Serie innerhalb der Tetraedrit Gruppe eingerichtet werden?

Stefan:
Ist an der Grube Frische Lutter nicht Argentotennantit-(Zn) beschrieben worden?

Argentotennantit-(Zn)
Ag6(Cu4Zn2)As4S13

Zvěstovit-(Zn)
Ag6(Ag4Zn2)As4S13

Eines trägt Kupfer das andere Mineral dafür mehr Silber.


Wo liegt eigentlich der Unterschied zwischen:

Zvěstovit-(Zn) (IMA 2020-061) Ag6(Ag4Zn2)As4S13, I-43m und
Rozhdestvenskayait-(Zn) (IMA 2016-094) Ag6(Ag4Zn2)Sb4S13,  I-43m ?

Beide haben die selbe Formel und nahzu idetisches Gitter.

heli:
Hallo Stefan,

da ist doch ein Unterschied. Einmal As und beim zweiten Sb.

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