New minerals and nomenclature modifications approved in 2019

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 OCTOBER 2019

IMA No. 2018-112

• Esdanaite-(Ce)

• NaMnCe(PO₄)₂·4H₂O

• Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu, Montérégie, Québec, Canada (45°33′46″N, 73°8′30″W)

• Thomas E. Gore* and Andrew M. McDonald

• *E-mail: [email protected]

• New structure type

• Orthorhombic: P2₁2₁2₁; structure determined

• a = 6.469(1), b = 7.169(1), c = 21.456(4) Å

• 10.997(100), 3.605(28), 3.236(28), 2.951(21), 2.778(29), 2.162(18), 2.005(16), 1.908(17)

• Type material is deposited in the mineralogical collections of the Canadian Museum of Nature, P.O. Box 3443, Station D, Ottawa, Ontario K1P 6P4, Canada, catalogue number CMNMC 87259

• How to cite: Gore, T.E. and McDonald, A.M. (2019) Esdanaite-(Ce), IMA 2018-112. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2018-168

• Melansonite

• Na□KZrSi₈O₁₉·5H₂O

• Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada (45°33′46″N, 73°8′30″W)

• Thomas E. Gore* and Andrew M. McDonald

• *E-mail: [email protected]

• Rhodesite group

• Orthorhombic: Pmma; structure determined

• a = 24.063(5), b = 6.982(1), c = 6.526(1) Å

• 11.988(100), 6.971(27), 6.529(19), 4.429(15), 3.429(15), 3.060(29), 2.881(25), 2.750(11)

• Type material is deposited in the mineralogical collections of the Canadian Museum of Nature, P.O. Box 3443, Station D, Ottawa, Ontario K1P 6P4, Canada, catalogue number CMNMC 87258

• How to cite: Gore, T.E. and McDonald, A.M. (2019) Melansonite, IMA 2018-168. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-052

• Ferrisanidine

• K(Fe³⁺Si₃O₈)

• 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)

• Nadezhda V. Shchipalkina, Igor V. Pekov, Sergey N. Britvin, Natalia N. Koshlyakova, Marina F. Vigasina and Evgeny G. Sidorov

• *E-mail: [email protected]

• Feldspar group

• Monoclinic: C2/m; structure determined

• a = 8.678(4), b = 13.140(8), c = 7.335(5) Å, β = 116.35(8)°

• 4.283(52), 3.819(36), 3.529(30), 3.342(84), 3.285(100), 2.939(34), 2.643(30), 2.200(41)

• 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 5414/1

• How to cite: Shchipalkina, N.V., Pekov, I.V., Britvin, S.N., Koshlyakova, N.N., Vigasina, M.F. and Sidorov, E.G. (2019) Ferrisanidine, IMA 2019-052. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-053

• Fluorluanshiweiite

• KLiAl_1.5□_0.5(Si_3.5Al_0.5)O₁₀F₂

• Nanyangshan deposit, North Qinling Orogen(NQO), western Henan Province, China (110°43′55″E, 33°52′58″N)

• Kai Qu*, Xianzhang Sima, Guowu Li, Guang Fan, Ganfu Shen, Xing Liu, Zhibin Xiao, Guo Hu, Linfei Qiu and Yanjuan Wang

• *E-mail: [email protected]

• Mica group

• Monoclinic: C2/m; structure determined

• a = 5.2030(5), b = 8.9894(6), c = 10.1253(9) Å, β = 100.68(1)°

• 8.427(25), 4.519(57), 4.121(25), 3.628(61), 3.349(60), 3.091(46), 2.586(100), 1.506(45)

• 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 M16085

• How to cite: Qu, K., Sima, X., Li, G., Fan, G., Shen, G., Liu, X., Xiao, Z., Hu, G., Qiu, L. and Wang, Y. (2019) Fluorluanshiweiite, IMA 2019-053. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-055

• Thalliomelane

• TlMn⁴⁺_7.5Cu²⁺_0.5O₁₆

• In a quarry at the Zalas village, near Cracow, Poland (50°05′33″N, 19°38′40″E)

• Bożena Gołębiowska*, Adam Pieczka, Maciej Zubko, Andreas Voegelin, Jörg Göttlicher and Grzegorz Rzepa

• *E-mail: [email protected]

• Hollandite supergroup

• Tetragonal: I4/m; structure determined

• a = 9.866(1), c = 2.8721(4) Å

• 3.120(85), 2.467(39), 2.407(66), 2.163(66), 1.838(45), 1.644(100), 1.545(39), 1.436(76),

• Type material is deposited in the collections of the Mineralogical Museum, University of Wrocław, Cybulskiego 30, 50-205 Wrocław, Poland, catalogue number MMWr IV8025

• How to cite: Gołębiowska, B., Pieczka, A., Zubko, M., Voegelin, A., Göttlicher, J. and Rzepa, G. (2019) Thalliomelane, IMA 2019-055. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-056

• Saccoite

• Ca₂Mn³⁺₂F(OH)₈·0.5(SO₄)

• Nchwaning 3 Mine (NW section, upper part of the ore body), Kalahari Manganese Field, Northern Cape Province, South Africa (27°07′45″S, 22°51′56″E)

• Gerald Giester*, Christian L. Lengauer, Dan Topa, Jens Gutzmer and Karl-Ludwig Von Bezing

• *E-mail: [email protected]

• New structure type

• Tetragonal: P4/ncc; structure determined

• a = 12.835(1), c = 5.6213(6) Å

• 9.073(35), 4.537(95), 4.064(20), 3.010(100), 2.812(20), 2.724(75), 1.975(35), 1.814(20)

• Type material is deposited in the mineralogical collections of the Naturhistorisches Museum Wien, Burgring 7, 1010 Vienna, Austria, inventory number O1784

• How to cite: Giester, G., Lengauer, C.L., Topa, D., Gutzmer, J. and Von Bezing, K.-L. (2019) Saccoite, IMA 2019-056. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-057

• Sergevanite

• Na₁₅(Ca₃Mn₃)(Na₂Fe)Zr₃Si₂₆O₇₂(OH)₃·H₂O

• On a dump of the Karnasurt underground mine, Karnasurt mountain, Lovozero alkaline massif, Kola Peninsula, Murmansk Oblast, Russia (67°53′25″N, 34°36′58″E)

• Nikita V. Chukanov*, Ramiza K. Rastsvetaeva, Sergey M. Aksenov, Igor V. Pekov, Dmitry I. Belakovskiy, Svetlana A. Vozchikova and Sergey N. Britvin

• *E-mail: [email protected]

• Eudialyte group

• Trigonal: R3; structure determined

• a = 14.2179(1), c = 30.3492(3) Å

• 7.12(70), 5.711(43), 4.321(72), 3.806(39), 3.551(39), 3.398(39), 2.978(95), 2.855(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 5423/1

• How to cite: Chukanov, N.V., Rastsvetaeva, R.K., Aksenov, S.M., Pekov, I.V., Belakovskiy, D.I., Vozchikova, S.A. and Britvin, S.N. (2019) Sergevanite, IMA 2019-057. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-058

• Polyarsite

• Na₇CaMgCu₂(AsO₄)₄F₂Cl

• 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*, Natalia V. Zubkova, Atali A. Agakhanov, Dmitry I. Belakovskiy, Marina F. Vigasina, Sergey N. Britvin, Anna G. Turchkova, Evgeny G. Sidorov and Dmitry Y. Pushcharovsky

• *E-mail: [email protected]

• New structure type

• Monoclinic: I2/m; structure determined

• a = 8.4323(4), b = 10.0974(4), c = 10.7099(6) Å, β = 90.822(4)°

• 5.357(98), 4.218(48), 3.304(49), 3.127(68), 2.783(61), 2.757(100), 2.704(54), 2.679(61)

• 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 5417/1

• How to cite: Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Belakovskiy, D.I., Vigasina, M.F., Britvin, S.N., Turchkova, A.G., Sidorov, E.G. and Pushcharovsky, D.Y. (2019) Polyarsite, IMA 2019-058. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-059

• Yurgensonite

• K₂SnTiO₂(AsO₄)₂

• 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*, Natalia V. Zubkova, Atali A. Agakhanov, Vasiliy O. Yapaskurt, Dmitry I. Belakovskiy, Marina F. Vigasina, Sergey N. Britvin, Anna G. Turchkova, Evgeny G. Sidorov and Dmitry Y. Pushcharovsky

• *E-mail: [email protected]

• The Ti,Sn-ordered analogue of katiarsite

• Orthorhombic: Pna2₁; structure determined

• a = 13.2681(6), b = 6.6209(3), c = 10.8113(5) Å

• 5.930(16), 5.656(100), 3.171(50), 3.082(11), 2.861(49), 2.830(82), 2.707(17), 2.600(14)

• 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 5419/1

• How to cite: Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Yapaskurt, V.O., Belakovskiy, D.I., Vigasina, M.F., Britvin, S.N., Turchkova, A.G., Sidorov, E.G. and Pushcharovsky, D.Y. (2019) Yurgensonite, IMA 2019-059. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-060

• Müllerite

• Pb₂Fe³⁺(Te⁶⁺O₆)Cl

• Several workings on Otto Mountain, 2.5 km WNW of Baker, San Bernardino Co., California, USA: Aga mine (35°16′19″N, 116°05′42″W), Aga Pit (35°16′17″N, 116°05′39″W), SW Cut (35°16′20″N, 116°06′04″W), Bird Nest drift (35°16′36″N, 116°06′01″W), Bird Nest E3 vein (35°16′31″N, 116°05′59″W), and Library mine (35°16′42″N, 116°06′05″W)

• Stuart J. Mills*, Anthony R. Kampf, Koichi Momma, Robert M. Housley and Joseph Marty

• *E-mail: [email protected]

• The Fe³⁺ analogue of backite

• Trigonal: P312; structure determined

• a = 5.2043(3), c = 8.963(1) Å

• 4.495(40), 4.009(14), 3.174(100), 2.597(54), 2.247(20), 2.009(32), 1.697(25), 1.590(31)

• Cotype material is deposited in the mineralogical collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007, USA, catalogue numbers 73609 (SW Cut), 73610 (E3 vein), 73611 (Bird Nest drift) and 73612 (Aga mine), and the Museums Victoria, GPO Box 666, Melbourne 3001, Victoria, Australia, specimen number M54913 (Aga mine)

• How to cite: Mills, S.J., Kampf, A.R., Momma, K., Housley, R.M. and Marty, J. (2019) Müllerite, IMA 2019-060. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-061

• Drechslerite

• Tl₄(Sb_4–xAs_x)S₈ (1 < x < 2)

• Lengenbach quarry, Binn Valley, Valais, Switzerland (46°21′54″N, 8°13′15″E)

• Dan Topa*, Stefan Graeser, Berthold Stoeger, Thomas Raber and Chris Stanley

• *E-mail: [email protected]

• Related to lorándite and weissbergite

• Triclinic: P $\overline 1 $; structure determined

• a = 6.041(1), b = 6.166(1), c = 11.573(2) Å, α = 100.89(3), β = 99.17(3), γ = 104.54(3)°

• 3.613(89), 3.605(72), 3.495(81), 2.917(77), 2.898(100), 2.773(76), 2.296(50), 2.248(66)

• Type material is deposited in the mineralogical collections of the Natural History Museum Vienna, Burgring 7, 1010 Wien, Austria, specimen number O1181 (holotype), and the Natural History Museum Basel, Augustinergasse 2, 4051 Basel, Switzerland, specimen number S209 (cotype)

• How to cite: Topa, D., Graeser, S., Stoeger, B., Raber, T. and Stanley, C. (2019) Drechslerite, IMA 2019-061. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-062

• Michalskiite

• Fe³⁺_1.33Cu²⁺₂(MgFe³⁺)₂(VO₄)₆

• In the dump of the Lichtenberg open pit, Ronneburg mining district, Thuringia, Germany (50°51′20″N, 12°09′58″E)

• Anthony R. Kampf*, Jakub Plášil, Radek Škoda and Jiří Čejka

• *E-mail: [email protected]

• Isostructural with lyonsite

• Orthorhombic: Pmcn; structure determined

• a = 10.2356(9), b = 17.369(2), c = 4.9406(4) Å

• 3.27(100), 3.20(20), 2.90(20), 2.80(15), 2.74(40), 2.52(50), 1.55(30), 1.42(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 67614

• How to cite: Kampf, A.R., Plášil, J., Škoda, R. and Čejka, J. (2019) Michalskiite, IMA 2019-062. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-064

• Evseevite

• Na₂Mg(AsO₄)F

• 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*, Natalia V. Zubkova, Atali A. Agakhanov, Dmitry I. Belakovskiy, Marina F. Vigasina, Vasiliy O. Yapaskurt, Sergey N. Britvin, Anna G. Turchkova, Evgeny G. Sidorov and Dmitry Y. Pushcharovsky

• *E-mail: [email protected]

• The arsenate analogue of moraskoite

• Orthorhombic: Pbcn; structure determined

• a = 5.3223(1), b = 14.1255(3), c = 12.0047(3) Å

• 4.001(100), 3.527(31), 3.479(56), 3.041(45), 2.998(29), 2.657(44), 2.642(68), 2.613(36)

• 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 5418/1

• How to cite: Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Belakovskiy, D.I., Vigasina, M.F., Yapaskurt, V.O., Britvin, S.N., Turchkova, A.G., Sidorov, E.G. and Pushcharovsky, D.Y. (2019) Evseevite, IMA 2019-064. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-065

• Grokhovskyite

• CuCrS₂

• Uakit iron meteorite (IIAB, 3.96 kg), found in 2016 in the Baunt Evenk district, Republic of Buryatia, Russia (55°29′47.50″N, 113°33′47.98″E)

• Victor V. Sharygin*, Grigoriy A. Yakovlev, Yurii V. Seryotkin, Nikolai S. Karmanov, Konstantin A. Novoselov and Maxim S. Karabanalov

• *E-mail: [email protected]

• Known synthetic analogue

• Trigonal: R3m

• a = 3.4794(8), c = 18.702(4) Å

• 3.117(15), 2.975(100), 2.868(69), 2.533(44), 2.347(34), 1.999(70), 1.847(50), 1.740(67)

• Type material is deposited in the meteorite collections of the Central Siberian Geological Museum, V.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, 3 prospekt Akad. Koptyuga, Novosibirsk 630090, Russia, registration number 52 (meteorite Uakit)

• How to cite: Sharygin, V.V., Yakovlev, G.A., Seryotkin, Y.V., Karmanov, N.S., Novoselov, K.A. and Karabanalov, M.S. (2019) Grokhovskyite, IMA 2019-065. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-068

• Bennesherite

• Ba₂Fe²⁺Si₂O₇

• In a paralava from Gurim Anticline, near Arad city, Hatrurim Complex (Mottled zone), Negev Desert, Israel (31°12.5′N, 35°15.7′E)

• Arkadiusz Krzątała*, Biljana Krüger, Irina Galuskina, Yevgeny Vapnik and Evgeny Galuskin

• *E-mail: [email protected]

• Melilite group

• Tetragonal: P $\overline 4 $2₁m; structure determined

• a = 8.233(1), c = 5.2854(8) Å

• 3.913(15), 3.682(13), 3.248(39), 3.021(100), 2.604(21), 2.147(22), 1.868(15), 1.855(18)

• 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 5396/1

• How to cite: Krzątała, A., Krüger, B., Galuskina, I., Vapnik, Y. and Galuskin, E. (2019) Bennesherite, IMA 2019-068. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-072

• Alcantarillaite

• [Fe³⁺_0.5(H₂O)₄][CaAs³⁺₂(Fe³⁺_2.5W⁶⁺_0.5)(AsO₄)₂O₇]

• Alcantarilla mine, Belalcazar, Cordoba, Andalusia, Spain

• Rupert Hochleitner, Christian Rewitzer, Ian E. Grey*, Alan Riboldi-Tunnicliffe, Anthony R. Kampf, Colin M. MacRae, W. Gus Mumme, Melanie Kaliwoda, Henrik Friis and Carlos U. Martin

• *E-mail: [email protected]

• Structurally related to walentaite

• Orthorhombic: Imma; structure determined

• a = 24.038(8), b = 7.444(3), c = 10.387(3) Å

• 12.02(100), 6.343(23), 6.025(27), 4.257(17), 3.148(12), 3.016(38), 2.927(11)

• Type material is deposited in the collections of the Mineralogical State Collection, Theresienstrasse 41, 80333 München, Germany, collection number MSM37182 (holotype), the Natural History Museum, University of Oslo, PO Box 1172, Blindern, 0318 Oslo, Norway, collection number KNR44147 (holotype), and the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 73568 (cotype)

• How to cite: Hochleitner, R., Rewitzer, C., Grey, I.E., Riboldi-Tunnicliffe, A., Kampf, A.R., MacRae, C.M., Mumme, W.G., Kaliwoda, M., Friis, H. and Martin, C.U. (2019) Alcantarillaite, IMA 2019-072. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2018-117b

• Jingsuiite

• TiB₂

• Luobusa ophiolite, ca. 200 km ESE of Lhasa, Tibet Autonomous Region, China (29°11′N, 92°18′E, 5300 m a.s.l.)

• Fahui Xiong, Xiangzhen Xu, Enrico Mugnaioli, Mauro Gemmi Richard Wirth, Edward S. Grew* and Paul T. Robinson

• *E-mail: [email protected]

• Known synthetic analogue

• Hexagonal: P6/mmm

• a = 3.01(6), c = 3.21(6) Å

• 3,218(21), 2.615(60), 2.029(100), 1.609(9), 1.510(20), 1.370(11), 1.211(12), 1.101(11)

• Type material is deposited in the mineralogical collections of the Chinese Geological Museum, No.15 Xisiyangrou Hutong, Xicheng District, Beijing 100034, China, registration number M13816

• How to cite: Xiong, F., Xu, X., Mugnaioli, E., Gemmi, M., Wirth, R., Grew, E.S. and Robinson, P.T. (2019) Jingsuiite, IMA 2018-117b. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

NEW MINERAL PROPOSALS APPROVED IN NOVEMBER 2019

IMA No. 2019-034

• Bridgesite-(Ce)

• CaCe₂Cu₆(SO₄)₄(OH)₁₂·8H₂O

• Tynebottom Mine, Garrigill, Cumbria, UK (54°46′16″N, 2°24′26″W)

• Mike S. Rumsey*, Frank Hawthorne and John Spratt

• *E-mail: [email protected]

• New structure type

• Monoclinic: C2/m; structure determined

• a = 24.801(5), b = 6.352(1), c = 11.245(2) Å, β = 114.51(3)°

• 6.376(99), 6.131(51), 4.116(55), 3.187(65), 2.822(52), 2.764(98), 2.698(94), 2.503(41)

• Type material is deposited in the mineralogical collections of the Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom, registration number BM2007,81 (holotype), BM2007,82 and BM2007,83 (cotypes)

• How to cite: Rumsey, M.S., Hawthorne, F. and Spratt, J. (2019) Bridgesite-(Ce), IMA 2019-034. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-051

• Jahnsite-(NaMnMn)

• NaMn²⁺(Mn²⁺Fe³⁺)_Σ2Fe³⁺₂(PO₄)₄(OH)₂·8H₂O

• Wiperaminga Hill West Quarry, Boolcoomatta Reserve, Olary Province, South Australia, Australia (31°57′42″S, 140°27′34″E)

• Peter Elliott* and Anthony R. Kampf

• *E-mail: [email protected]

• Jahnsite group

• Monoclinic: P2/a; structure determined

• a = 15.136(1), b = 7.2035(3), c = 9.9876(6) Å, β = 110.361(5)°

• 9.310(58), 5.035(26), 4.940(24), 4.664(25), 3.948(24), 3.551(34), 2.851(100), 2.608(27)

• Type material is deposited in the mineralogical collections of the South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia, registration number G34799

• How to cite: Elliott, P. and Kampf, A.R. (2019) Jahnsite-(NaMnMn), IMA 2019-051. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-054

• Chiyokoite

• Ca₃Si(CO₃){[B(OH)₄]_0.5(AsO₃)_0.5}(OH)₆·12H₂O

• Fuka mine, Fuka, Bicchu-cho, Takahashi City, Okayama Prefecture, Japan (34°46′00″N, 133°25′59″E)

• Inna Lykova*, Nikita V. Chukanov, Igor V. Pekov, Vasiliy O. Yapaskurt, Leonid A. Pautov, Vladimir Y. Karpenko, Dmitry I. Belakovskiy, Dmitry A. Varlamov, Sergey N. Britvin and Katharina S. Scheidl

• *E-mail: [email protected]

• Ettringite group

• Hexagonal: P6₃; structure determined

• a = 11.0119(5), c = 10.5252(6) Å

• 9.53(100), 5.50(24), 4.618(11), 3.812(23), 3.412(15), 2.726(14), 2.521(19), 2.172(13)

• Cotype material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5412/1 and the Canadian Museum of Nature, 240 McLeod Street, Ottawa, ON K2P 2R1, Canada, catalogue number CMNMC 87294

• How to cite: Lykova, I., Chukanov, N.V., Pekov, I.V., Yapaskurt, V.O., Pautov, L.A., Karpenko, V.Y., Belakovskiy, D.I., Varlamov, D.A., Britvin, S.N. and Scheidl, K.S. (2019) Chiyokoite, IMA 2019-054. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-073

• Jahnsite-(CaMnZn)

• CaMn²⁺Zn₂Fe³⁺₂(PO₄)₄(OH)₂·8H₂O

• Pegmatite mine (67 m level), Hagendorf-Süd, Oberpfalz, Bavaria, Germany (49°39′01″N, 12°27′35″E)

• Ian E. Grey*, Erich Keck, Anthony R. Kampf, Colin M. MacRae, John D. Cashion and A. Matt Glenn

• *E-mail: [email protected]

• Jahnsite group

• Monoclinic: P2/a

• a = 15.054(1), b = 7.1890(6), c = 10.030(2) Å, β = 111.273(7)°

• 9.356(40), 5.018(43), 4.677(32), 3.509(30), 3.473(24), 2.853(100), 1.961(22), 1.882(18)

• Type material is deposited in the mineralogical collections of the Museums Victoria, PO Box 666, Melbourne, VIC 3001, Australia, registration number M55028 (holotype), and the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 73927 (cotype)

• How to cite: Grey, I.E., Keck, E., Kampf, A.R., MacRae, C.M., Cashion, J.D. and Glenn, M. (2019) Jahnsite-(CaMnZn), IMA 2019-073. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-075

• Suenoite

• □Mn₂Mg₅Si₈O₂₂(OH)₂

• Scortico Mn ore deposit, Fivizzano, Massa Carrara, Apuan Alps, Tuscany, Italy (44°07′39″N, 10°07′12″E)

• Cristian Biagioni*, Marco Pasero, Elena Bonaccorsi, Ulf Hålenius and Ferdinando Bosi

• *E-mail: [email protected]

• Amphibole supergroup

• Orthorhombic: Pnma; structure determined

• a = 18.751(1), b = 18.140(1), c = 5.3173(3) Å

• 9.1(m), 8.4(s), 3.263(s), 3.085(vs), 2.851(m), 2.727(m), 2.615(m), 2.537(m)

• Type material is deposited in the mineralogical collections of the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (Pisa), Italy, catalogue number 19891

• How to cite: Biagioni, C., Pasero, M., Bonaccorsi, E., Hålenius, U. and Bosi, F. (2019) Suenoite, IMA 2019-075. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-076

• Badengzhuite

• TiP

• Cr-11 orebody, Luobusha ophiolite, ca. 200 km ESE of Lhasa, Tibet, China (29°11′N, 92°18′E, 5300 m asl)

• Fahui Xiong, Xiangzhen Xu, Enrico Mugnaioli, Mauro Gemmi, Richard Wirth, Edward Grew* and Paul T. Robinson

• *E-mail: [email protected]

• Known synthetic analogue

• Hexagonal: P6₃/mmc; structure determined

• a = 3.49(7), c = 11.76(24) Å

• 3.022(14), 2.927(26), 2.688(31), 2.394(100), 2.107(33), 1.856(26), 1.745(44), 1.410(11)

• Type material is deposited in the mineralogical collections of the Chinese Geological Museum, Xisiyangrouhutong 15th, Xicheng district, Beijing, China, specimen number M13817

• How to cite: Xiong, F., Xu, X., Mugnaioli, E., Gemmi, M., Wirth, R., Grew, E. and Robinson, P.T. (2019) Badengzhuite, IMA 2019-076. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-077

• Zhiqinite

• TiSi₂

• Cr-11 orebody, Luobusha ophiolite, ca. 200 km ESE of Lhasa, Tibet, China (29°11′N, 92°18′E, 5300 m asl)

• Fahui Xiong, Xiangzhen Xu, Enrico Mugnaioli, Mauro Gemmi, Richard Wirth, Edward Grew* and Paul T. Robinson

• *E-mail: [email protected]

• Known synthetic analogue

• Orthorhombic: Fddd; structure determined

• a = 8.10(16), b = 4.77(9), c = 8.52(17) Å

• 3.702(9), 2.935(31), 2.265(100), 2.130(43), 2.081(78), 2.055(9), 1.810(39), 1.353(9)

• Type material is deposited in the mineralogical collections of the Chinese Geological Museum, Xisiyangrouhutong 15th, Xicheng district, Beijing, China, specimen number M13817

• How to cite: Xiong, F., Xu, X., Mugnaioli, E., Gemmi, M., Wirth, R., Grew, E. and Robinson, P.T. (2019) Zhiqinite, IMA 2019-077. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-079

• Bowlesite

• PtSnS

• Merensky Reef, Bushveld igneous complex, South Africa

• Anna Vymazalová*, Federica Zaccarini, Giorgio Garuti, František Laufek, Daniela Mauro, Chris J. Stanley and Cristian Biagioni

• *E-mail: [email protected]

• Isotypic with cobaltite

• Orthorhombic: Pca2₁; structure determined

• a = 6.12, b = 6.12, c = 6.10 Å

• 3.526(40), 3.054(47), 2.490(36), 2.159(82), 1.843(100), 1.401(64), 1.368(32), 1.367(35)

• Type material is deposited in the mineralogical collections of the Department of Earth Sciences, Natural History Museum, London SW7 5BD, UK, catalogue number BM2019,11 (holotype), and the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (Pisa), Italy, catalogue number 19909 (anthropotype)

• How to cite: Vymazalová, A., Zaccarini, F., Garuti, G., Laufek, F., Mauro, D., Stanley, C.J. and Biagioni, C. (2019) Bowlesite, IMA 2019-079. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-080

• Gorerite

• CaAlFe³⁺₁₁O₁₉

• “Olive unit”, Hatrurim Complex, Negev Desert, near Arad city, Israel (31°13′58″N, 35°16′02″E)

• Evgeny V. Galuskin, Biljana Krüger, Irina O. Galuskina, Hannes Krüger, Krzysztof Nejbert, Yevgeny Vapnik and Takashi Tomizaki

• *E-mail: [email protected]

• Magnetoplumbite group

• Hexagonal: P6₃/mmc; structure determined

• a = 5.8532(4), c = 22.7730(2) Å

• 2.795(40), 2.695(100), 2.508(94), 2.306(39), 2.136(27), 1.594(31), 1.571(46), 1.398(42)

• 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 5420/1

• How to cite: Galuskin, E.V., Krüger, B., Galuskina, I.O., Krüger, H., Nejbert, K., Vapnik, Y. and Tomizaki, T. (2019) Gorerite, IMA 2019-080. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2019-081

• Alexkuznetsovite-(La)

• La₂Mn(CO₃)(Si₂O₇)

• Mochalin Log REE deposit, 14 km N of the city of Kyshtym, Chelyabinsk Oblast’, South Urals, Russia (55°48′42″N, 60°33′46″E)

• Anatoly V. Kasatkin*, Natalia V. Zubkova, Igor V. Pekov, Nikita V. Chukanov, Radek Škoda, Atali A. Agakhanov, Dmitriy I. Belakovskiy and Dmitry Y. Pushcharovsky

• *E-mail: [email protected]

• The La- and Mn-dominant analogue of biraite-(Ce)

• Monoclinic: P2₁/c; structure determined

• a = 6.5642(3), b = 6.7689(3), c = 18.721(1) Å, β = 108.684(6)°

• 4.595(63), 4.489(56), 4.331(62), 4.208(50), 3.171(49), 2.962(100), 2.785(76), 2.692(59)

• 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 5416/1

• How to cite: Kasatkin, A.V., Zubkova, N.V., Pekov, I.V., Chukanov, N.V., Škoda, R., Agakhanov, A.A., Belakovskiy, D.I. and Pushcharovsky, D.Y. (2019) Alexkuznetsovite-(La), IMA 2019-081. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2018-125a

• Fehrite

• MgCu₄(SO₄)₂(OH)₆·6H₂O

• Mina Casualidad, near Baños de Alhamilla, Almeria, Spain (36°57′45.53″N, 2°23′44.17″W)

• Jochen Schlüter*, Thomas Malcherek, Christian Rewitzer, Rupert Hochleitner, Dirk Müller and Amanda Günther

• *E-mail: [email protected]

• The Mg analogue of ktenasite

• Monoclinic: P2₁/c; structure determined

• a = 5.6062(8), b = 6.129(1), c = 23.834(3) Å, β = 95.29(1)°

• 11.936(100), 5.920(31), 4.845(11), 3.933(11), 2.964(10), 2.775(9), 2.659(12), 2.552(8)

• Type material is deposited in the collections of the Mineralogical Museum, Centrum für Naturkunde, University Hamburg, Grindelallee 48, 20146 Hamburg, Germany, catalogue No. MM1544 (holotype), and the Mineralogische Staatssammlung München, Theresienstrasse 41, 80333 München, Germany, catalogue No. MSM36473 (cotype)

• How to cite: Schlüter, J., Malcherek, T., Rewitzer, C., Hochleitner, R., Müller, D. and Günther, A. (2019) Fehrite, IMA 2018-125a. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

IMA No. 2018-149a

• Petrovite

• Na₈(NaCu)Cu₂Na(SO₄)₈

• Second scoria cone of the Northern Breakthrough of the Great Tolbachik fissure eruption, Tolbachik volcano, Kamchatka, Far-Eastern Region, Russia (55°41′N, 160°14′E, 1200 m asl)

• Andrey P. Shablinskii, Lidiya P. Vergasova, Stanislav K. Filatov* and Svetlana V. Moskaleva

• *E-mail: [email protected]

• Chemically similar to saranchinaite

• Monoclinic: P2₁/c; structure determined

• a = 12.615(2), b = 9.026(1), c = 12.717(2) Å, β = 108.311(3)°

• 11.59(61), 7.27(38), 4.54(33), 3.88(75), 3.68(52), 3.11(36), 2.623(100), 1.931(35)

• Type material is deposited in the collections of the Mineralogical Museum of Saint-Petersburg State University, University Emb. 7/9, St. Petersburg 199034, Russia, catalogue number 1/19696

• How to cite: Shablinskii, A.P., Vergasova, L.P., Filatov, S.K. and Moskaleva, S.V. (2019) Petrovite, IMA 2018-149a. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73

NOMENCLATURE/CLASSIFICATION PROPOSALS APPROVED IN OCTOBER 2019

IMA 19-E: Revalidation of dienerite

Proposal 19-E is accepted, and the mineral dienerite is revalidated. This species shows an ideal chemical formula Ni₃As, with a = 9.6206(9) Å, space group I $\overline 4 $3d. It is isotypic with domeykite, Cu₃As, and the neotype sample is deposited in the collections of the Museo di Storia Naturale, Università di Firenze, Italy, under the catalogue number 3364/I.

IMA 19-F: Redefinition of coquimbite

Proposal 19-F is accepted, and coquimbite is redefined as AlFe₃(SO₄)₆(H₂O)₁₂·6H₂O (Z = 2). Neotype material is the sample studied by Fang and Robinson (1970) from the Tierra Amarilla (the original type locality described by Rose, 1833) and kept in the U.S. National Museum, Washington DC, USA, catalogue number 12548. In order to be compared with coquimbite, the chemical formulae of paracoquimbite and aluminocoquimbite are also redefined as Fe₄(SO₄)₆(H₂O)₁₂·6H₂O (Z = 6) and Al₂Fe₂(SO₄)₆(H₂O)12·6H₂O (Z = 2), respectively. Coquimbite and paracoquimbite are characterised by homeotypic structures, so they constitute the ‘coquimbite group’. Aluminocoquimbite, characterised by a different topology, does not belong to the coquimbite group.

NOMENCLATURE/CLASSIFICATION PROPOSALS APPROVED IN NOVEMBER 2019

Revision of the ideal formula of ktenasite

After the approval of fehrite, MgCu₄(SO₄)₂(OH)₆·6H₂O (IMA No. 2018-125a; see above), the ideal formula of the related mineral ktenasite is modified from (Cu,Zn)₅(SO₄)₂(OH)₆·6H₂O to ZnCu₄(SO₄)₂(OH)₆·6H₂O. This is an executive decision taken by the CNMNC.

Revision of the ideal formula of leisingite

The mineral leisingite has been always assumed to have chemical formula CuMg₂Te⁶⁺O₆·6H₂O. A careful reading of the papers with the description of the new mineral and of its crystal structure [Mineral. Mag. 60 (1996), 653–657; Can. Mineral. 35 (1997), 759–763], made it clear that Cu is by far the dominant cation at the 2c site, whereas Mg is the dominant cation at the 1b site. Therefore the formula must be changed to Cu₂MgTe⁶⁺O₆·6H₂O. Thanks to Owen Missen for spotting it.