New Minerals and Nomenclature Modifications Approved in 2016 and 2017

IMA No. 2016-083

• Potassic-magnesio-arfvedsonite

• KNa₂Mg₄Fe³⁺Si₈O₂₂(OH)₂

• Buhovo-Seslavtsi pluton, Sofia district, Bulgaria (42°47′N, 23°34′E)

• Momchil Dyulgerov*, Bernard Platevoet, Roberta Oberti, Milen Kadiyski and Ventsislav Rusanov

• *E-mail: momchil@gea.uni-sofia.bg

• Amphibole supergroup

• Monoclinic: C2/m; structure determined

• a = 9.986(2), b = 18.022(3), c = 5.3151(12) Å, β = 104.44(2)°

• 8.519(87), 3.406(82), 3.172(72), 2.755(59), 2.716(100), 2.594(52), 2.551(68), 2.175(57)

• Type material is deposited in the collections of the Museum of Mineralogy, Petrology and Economic Geology, Sofia University ‘St. Kliment Ohridski’, 15 Tsar Osvoboditel Blvd, Sofia 1504, Bulgaria, catalogue number M 7661

• How to cite: Dyulgerov, M., Platevoet, B., Oberti, R., Kadiyski, M., Rusanov, V. (2017): Potassic-magnesio-arfvedsonite, IMA 2016-083. CNMNC Newsletter No. 35, February 2017, page 149; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-084

• Kampelite

• Ba₆Mg₃Sc₈(PO₄)₁₂(OH)₆·7H₂O

• Iron open pit, Kovdor massif, Murmansk Region, Russia (67°33′N, 30°30′E)

• Victor N. Yakovenchuk, Gregory Y. Ivanyuk, Yakov A. Pakhomovsky, Taras L. Panikorovskii, Sergei N. Britvin, Sergey V. Krivovichev*, Vladimir V. Shilovskikh and Vladimir N. Bocharov

• *E-mail: s.krivovichev@spbu.ru

• New structure type

• Orthorhombic: Pnma; structure determined

• a = 11.2261(9), b = 8.5039(6), c = 27.699(2) Å

• 15.80(100), 13.86(45), 3.292(11), 3.184(18), 3.129(19), 3.022(14), 2.756(16), 2.688(24)

• Type material is deposited in the collections of the Mineralogical museum, St. Petersburg State University, Russia, catalogue No. 1/19660

• How to cite: Yakovenchuk, V.N., Ivanyuk, G.Y., Pakhomovsky, Y.A., Panikorovskii, T.L., Britvin, S. N., Krivovichev, S.K., Shilovskikh, V.V., Bocharov, V.N. (2017): Kampelite, IMA 2016-084. CNMNC Newsletter No. 35, February 2017, page 150; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-085

• Hemleyite

• FeSiO₃

• Suizhou (L6 chondrite) meteorite, Suizhou Co., Hubei, China (31°43′N, 113°23′E)

• Luca Bindi*, Ming Chen and Xiande Xie

• *E-mail: luca.bindi@unifi.it

• Ilmenite group

• Trigonal: R$3¯$⁠; structure determined

• a = 4.7483(5), c = 13.665(1) Å

• 3.520(35), 2.625(100), 2.376(50), 2.105(50), 1.762(25), 1.645(50), 1.415(10), 1.372(20)

• Type material is deposited in the mineralogical collections of the Museo di Storia Naturale, Università di Firenze, Via La Pira 4, I-50121, Firenze, Italy, catalogue number 3238/I

• How to cite: Bindi, L., Chen, M., Xie, X. (2017): Hemleyite, IMA 2016-085. CNMNC Newsletter No. 35, February 2017, page 150; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-086

• Palladogermanide

• Pd₂Ge

• Marathon deposit, Coldwell Complex, Ontario, Canada (48°48′7″N, 86°18′35″W)

• Andrew M. McDonald*, William Zhe, Doreen E. Ames, Kirk C. Ross, Ingrid M. Kjarsgaard and David J. Good

• *E-mail: amcdonald@laurentian.ca

• Related to marathonite (IMA 2016-080)

• Hexagonal: P$6¯$ 2m

• a = 6.712(1), c = 3.408(1) Å

• 2.392(100), 2.211(58), 2.197(43), 1.937(34), 1.846(16), 1.704(16), 1.280(13), 1.242(18)

• Type material is deposited in the mineralogical collections of the Canadian Museum of Nature, Gatineau, Quebec, Canada, catalogue number CMNMC 87179

• How to cite: McDonald, A.M., Zhe, W., Ames, D.E., Ross, K.C., Kjarsgaard, I.M., Good, D.J. (2017): Palladogermanide, IMA 2016-086. CNMNC Newsletter No. 35, February 2017, page 150; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-087

• Fupingqiuite

• $(Na,Mn2+,□)2Mn22+Fe3+(PO4)3$

• Nancy pegmatite, Chacabuco Department, San Luis Province, Argentina (32°28′48″S, 65°16′42″W)

• Hexiong Yang*, Robert T. Downs, Xiangping Gu, Xiande Xie and Anaïs Kobsch

• *E-mail: hyang@email.arizona.edu

• Wyllieite group

• Monoclinic: P2₁/n; structure determined

• a = 11.9951(3), b = 12.5217(3), c = 6.4260(2) Å, β = 114.640(1)°

• 3.488(28), 3.070(98), 2.919(34), 2.873(83), 2.834(55), 2.713(100), 2.517(87), 2.088(79)

• Cotype material is deposited in the collections of the Mineral Museum, University of Arizona, Tucson, USA, catalogue # 21322, and the RRUFF Project, deposition # R160052

• How to cite: Yang, H., Downs, R.T., Gu, X., Xie, X., Kobsch, A. (2017): Fupingqiuite, IMA 2016-087. CNMNC Newsletter No. 35, February 2017, page 150; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-088

• Rudabányaite

• (Ag₂Hg₂)(AsO₄)Cl

• Adolf mine, Rudabánya ore deposit, Borsod-Abaúj-Zemplén Co., Hungary

• Sándor Szakáll*, Herta Effenberger, Béla Fehér and Norbert Zajzon

• *E-mail: askszs@uni-miskolc.hu

• New structure type

• Cubic: F$4¯$ 3c; structure determined

• a = 17.360(3) Å

• 5.00(m), 4.33(mw), 2.931(s), 2.882(w), 2.611(s), 2.255(mw), 2.001(m), 1.734(mw)

• Type material is deposited in the mineralogical collections of the Herman Ottó Museum, Kossuth u. 13, H-3525 Miskolc, Hungary, catalogue number 2016.351

• How to cite: Szakáll, S., Effenberger, H., Fehér, B., Zajzon, N. (2017): Rudabányaite, IMA 2016-088. CNMNC Newsletter No. 35, February 2017, page 150; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-089

• Fluorbarytolamprophyllite

• (Ba,Sr)₂[(Na,Fe²⁺)₃(Ti,Mg)F₂][Ti₂(Si₂O₇)₂O₂]

• Niva alkaline intrusion, Kola Alkaline Province, Murmansk Region, Russia (67°15′N, 32°17′E)

• Maria I. Filina*, Sergey M. Aksenov, Nikita V. Chukanov, Natalia V. Sorokhtina, Natalia N. Kononkova, Dmitriy I. Belakovskiy, Sergey N. Britvin, Lia N. Kogarko, Ramiza K. Rastsvetaeva, Ivan G. Bystrov and Alexandr D. Chervonnyi

• *E-mail: makimm@mail.ru

• Lamprophyllite group

• Monoclinic: C2/m; structure determined

• a=19.538(1), b=7.092(1), c=5.391(2)Å, β = 96.704(8)°

• 9.692(40), 3.726(59), 3.414(67), 3.230(96), 3.013(53), 2.780(100), 2.662(52), 2.135(44)

• Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration numbers 4916/1 and 4916/2

• How to cite: Filina, M.I., Aksenov, S.M., Chukanov, N.V., Sorokhtina, N.V., Kononkova, N.N., Belakovskiy, D.I., Britvin, S.N., Kogarko, L.N., Rastsvetaeva, R.K., Bystrov, I.G., Chervonnyi, A.D. (2017): Fluorbarytolamprophyllite, IMA 2016-089. CNMNC Newsletter No. 35, February 2017, page 151; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-090

• Markeyite

• Ca₉(UO₂)₄(CO₃)₁₂(OH)₂·28H₂O

• Markey mine, Red Canyon, White Canyon District, San Juan Co., Utah, USA (37°32′57″N, 110°18′08″W)

• Anthony R. Kampf*, Jakub Plášil, Anatoly V. Kasatkin, Joe Marty and Jiří Čejka

• *E-mail: akampf@nhm.org

• New structure type

• Orthorhombic: Pmmn; structure determined

• a = 17.969(1), b = 18.4705(6), c = 10.1136(4) Å

• 10.12(69), 6.41(91), 5.43(100), 5.07(33), 4.618(25), 4.104(37), 3.984(34), 2.732(25)

• Cotype material is deposited in the collections of the Natural History Museum, Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 67091 (holotype), 67092, 67093, 67094 and 69095 (cotype), and the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration number 4932/1 (cotype)

• How to cite: Kampf, A.R., Plášil, J., Kasatkin, A.V., Marty, J., Čejka, J. (2017): Markeyite, IMA 2016-090. CNMNC Newsletter No. 35, February 2017, page 151; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-091

• Delhuyarite-(Ce)

• Ce₄Mg(Fe³⁴⁺,W)₃□(Si₂O₇)₂O₆(OH)₂

• Nya Bastnäs Fe-Cu-REE mine field, Skinnskatteberg, Västmanland, Sweden (59°50′47″N, 15°35′15″E)

• Dan Holtstam*, Luca Bindi, Ulf Hålenius and Ulf B. Andersson

• *E-mail: dan.holtstam@vr.se

• Chevkinite subgroup

• Monoclinic: C2/m; structure determined

• a =13.6020(6), b = 5.7445(3), c = 10.9996(5) Å, β = 100.721(4)°

• 10.808(99), 4.611(71), 3.211(100), 3.170(66), 3.037(71), 2.726(91), 2.702(83), 2.187(56)

• 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 no. NRM 19060375

• How to cite: Holtstam, D., Bindi, L., Hålenius, U., Andersson, U.B. (2017): Delhuyarite-(Ce), IMA 2016-091. CNMNC Newsletter No. 35, February 2017, page 151; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-092

• Kravtsovite

• PdAg₂S

• Komsomolsky mine, Talnakh deposit, Noril’sk deposits, Russia (69°30′20″N, 88°27′17″E)

• Anna Vymazalová*, František Laufek, Sergei F. Sluzhenikin, Chris J. Stanley, Vladimir V. Kozlov, Dmitry A. Chareev and Maria L. Lukashova

• *E-mail: anna.vymazalova@geology.cz

• New structure type

• Orthorhombic: Cmcm; structure determined

• a = 7.9835(1), b = 5.9265(1), c = 5.7451(1) Å

• 2.632(51), 2.458(65), 2.426(71), 2.378(36), 2.330(60), 2.235(100), 2.197(48), 2.061(42)

• Type material is deposited in the mineralogical collections of the Department of Earth Sciences, Natural History Museum, London, UK, catalogue number BM 2016,150

• How to cite: Vymazalová, A., Laufek, F., Sluzhenikin, S.F., Stanley, C.J., Kozlov, V.V., Chareev, D.A., Lukashova, M.L. (2017): Kravtsovite, IMA 2016-092. CNMNC Newsletter No. 35, February 2017, page 151; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-093

• Argentotetrahedrite

• Ag₆Cu₄(Fe,Zn)₂Sb₄S₁₃

• Keno Hill Ag-Pb-Zn deposit, Yukon Territory, Canada (63°54′29″N, 135°18′14″W)

• Mark D. Welch*, Chris J. Stanley, John Spratt and Stuart J. Mills

• *E-mail: mdw@nhm.ac.uk

• The Sb analogue of argentotennantite

• Cubic: I$4¯$ 3m; structure determined

• a = 10.6116(1) Å

• 4.331(6), 3.063(100), 2.652(28), 2.501(8), 2.081(19), 1.937(12), 1.876(35), 1.599(25)

• Cotype material is deposited in the mineralogical collections of Queens’s University (Miller collection), Ontario, Canada, catalogue number M8224 (holotype) and M7138 (cotype), and the Natural History Museum London, specimen number BM2016,101 (cotype)

• How to cite: Welch, M.D., Stanley, C.J., Spratt, J., Mills, S.J. (2017): Argentotetrahedrite, IMA 2016-093. CNMNC Newsletter No. 35, February 2017, page 151; European Journal of Mineralogy, 29, 149–152.

IMA No. 2016-094

• Rozhdestvenskayaite

• Ag₁₀Zn₂Sb₄S₁₃

• Bambolla mine, Moctezuma, Sonora, Mexico (29°41′N, 109°43′W)

• Mark D. Welch*, Chris J. Stanley, John Spratt and Stuart J. Mills

• *E-mail: mdw@nhm.ac.uk

• Chemically related to argentotetrahedrite (IMA 2016-093)

• Cubic: I$4¯$ 3m; structure determined

• a = 10.9845(7) Å

• 3.161(100), 2.927(8), 2.738(35), 2.581(8), 2.148(18), 1.999(10), 1.936(24), 1.651(19)

• Type material is deposited in the mineralogical collections of the Natural History Museum London, specimen number BM2016,102

• How to cite: Welch, M.D., Stanley, C.J., Spratt, J., Mills, S.J. (2017): Rozhdestvenskayaite, IMA 2016-094. CNMNC Newsletter No. 35, February 2017, page 152; European Journal of Mineralogy, 29, 149–152.

IMA No. 2015-110a

• Riesite

• TiO₂

• Nördlinger Ries Crater, Swabia, Bavaria, Germany (48°48′32″N, 10°35′20″E)

• Oliver Tschauner* and Chi Ma

• *E-mail: olivert@physics.unlv.edu

• The fifth polymorph of TiO₂

• Monoclinic: P2/c; structure determined

• a = 4.519(3), b = 5.503(8), c = 4.888(2) Å, β = 90.59(8)°

• 3.490(88), 2.852(100), 2.833(70), 2.359(33), 2.094(22), 1.682(23), 1.671(26), 1.647(27)

• Type material is deposited in the collections of the Institut für Geowissenschaften, Ruprecht-Karls Universität Heidelberg, Germany, thin section ZLN114c

• How to cite: Tschauner, O., Ma, C. (2017): Riesite, IMA 2015-110a. CNMNC Newsletter No. 35, February 2017, page 152; European Journal of Mineralogy, 29, 149–152.

Potassicmendeleevite-(Ce) (not a valid species)

Although erroneously marked as “A” (= Approved) in the IMA List of Minerals for some years, only recently we became aware that actually the mineral has not yet been approved (only the name was approved). Accordingly potassicmendeleevite-(Ce) has been omitted from the list of valid species.

A paper on the mineral nickelskutterudite has been published recently [American Mineralogist, 102, 205–209 (2017)] in which the ideal chemical formula of the mineral is given as (Ni,Co,Fe)As₃. In this formula, based on new EPMA and SCXRD data, and on crystal-chemical arguments, both Co and Fe must be present as subordinate yet essential components, and no As deficiencies were observed (the previously accepted formula of nickelskutterudite was NiAs_3−x). These data were examined carefully by the CNMNC officers and were considered reliable. Accordingly it was agreed to modify the formula of nickelskutterudite in the official IMA List of Minerals. Similarly, the formula of skutterudite becomes now CoAs₃ (it was CoAs_3−x).