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Autor Thema: Neue Mineralien Dez. 2017 - Jan. 2018  (Gelesen 1876 mal)

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Neue Mineralien Dez. 2017 - Jan. 2018
« am: 13 Mar 18, 16:02 »
NEW MINERAL PROPOSALS APPROVED IN DECEMBER 2017

IMA No. 2017-085
Thorasphite
Th2H(PO4,AsO4)3·6H2O
Elsmore Tin Mine, Elsmore, New South Wales, Australia (151°17’E, 29°48’S)
Peter Elliott*
*E-mail: peter.elliott@adelaide.edu.au
New structure type
Orthorhombic: Pbcn; structure determined
a = 13.673(3), b = 9.925(2), c = 10.222(2) Å
8.007(100), 5.127(57), 4.934(71), 4.320(24), 4.251(38), 3.225(22), 3.189(27), 2.926(27)
Type material is deposited in the mineralogical collections of the South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia, registration number G34702
How to cite: Elliott, P. (2018) Thorasphite, IMA 2017-085. CNMNC Newsletter No. 41, February 2018, page xxx; Mineralogical Magazine, 82, xxx-xxx.

IMA No. 2017-086
Strassmannite
Al(UO2)(SO4)2F·16H2O
Green Lizard mine, White Canyon mining district, San Juan Co., Utah, USA (37°34’37.10”N, 110°17’52.80”W); Markey mine, White Canyon mining district, San Juan Co., Utah, USA (37°32’57”N, 110°18’08”W)
Anthony R. Kampf*, Jakub Plášil, Barbara P. Nash and Joe Marty
*E-mail: akampf@nhm.org
Structurally related to leydetite, magnesioleydetite and wetherillite
Monoclinic: C2/c; structure determined
a = 11.0187(5), b = 8.3284(3), c = 26.673(2) Å, β = 97.426(7)°
13.24(100), 6.61(53), 6.11(26), 5.74(35), 4.494(22), 3.324(38), 3.265(20), 3.138(23)
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 67264 (GL), 67265 (GL), 67266 (M), and 67267 (M)
How to cite: Kampf, A.R., Plášil, J., Nash, B.P. and Marty, J. (2018) Strassmannite, IMA 2017-086. CNMNC Newsletter No. 41, February 2018, page xxx; Mineralogical Magazine, 82, xxx-xxx.

IMA No. 2017-088
Tsygankoite
Mn8Tl8Hg2(Sb21Pb2Tl)S48
Vorontsovskoe deposit, 0.5 km W of the settlement of Vorontsovka, ca. 13 km S of Krasnotur’insk, Sverdlovskaya Oblast’, Northern Urals, Russia (59°39’5”N, 60°12’56”E)
Anatoly V. Kasatkin*, Emil Makovicky, Jakub Plášil, Radek Škoda, Atali A. Agakhanov and Vladimir Y. Karpenko
*E-mail: anatoly.kasatkin@gmail.com
New structure type
Monoclinic: C2/c; structure determined
a = 21.362(4), b = 3.858(1), c = 27.135(4) Å, β = 106.94(1)°
3.587(100), 3.391(68), 3.353(70), 3.204(88), 2.858(64), 2.841(72), 2.805(60), 2.786(99)
Cotype material is deposited in the mineralogical collections of the Fersman Mineralogical
Museum, Russian Academy of Sciences, Moscow, Russia, registration number 5018/1
How to cite: Kasatkin, A.V., Makovicky, E., Plášil, J., Škoda, R., Agakhanov, A.A. and
Karpenko, V.Y. (2018) Tsygankoite, IMA 2017-088. CNMNC Newsletter No. 41, February 2018,
page xxx; Mineralogical Magazine, 82, xxx-xxx.

IMA No. 2017-089
Petersite-(La)
Cu6La(PO4)3(OH)6·3H2O
Detani River, Ohgurusu, Kiwa, Kumano, Mie Prefecture, Japan (33°52’57”N, 135°55’46”E)
Daisuke Nishio-Hamane*, Masayuki Ohnishi, Norimasa Shimobayashi, Koichi Momma, Ritsuro
Miyawaki and Sachio Inaba
*E-mail: hamane@issp.u-tokyo.ac.jp
Mixite group
Hexagonal: P63/m; structure determined
a = 13.410(5), c = 5.881(4) Å
11.621(100), 4.393(36), 3.519(29), 3.344(15), 2.907(21), 2.693(14), 2.534(14), 2.444(73)
Cotype material is deposited in the mineralogical collections of the National Museum of Nature
and Science, Tsukuba, Ibaraki 305-0005, Japan, specimen number NSM-M45621
How to cite: Nishio-Hamane, D., Ohnishi, M., Shimobayashi, M., Momma, K., Miyawaki, R. and
Inaba, S. (2018) Petersite-(La), IMA 2017-089. CNMNC Newsletter No. 41, February 2018, page
xxx; Mineralogical Magazine, 82, xxx-xxx.

IMA No. 2017-090
Ramazzoite
[Mg8Cu12(PO4)(CO3)4(OH)24(H2O)20][(H0.33SO4)3(H2O)36]
Monte Ramazzo mine, Genova, Liguria, Italy (44°28’5”N, 8°51’33”E)
Anthony R. Kampf*, George R. Rossman, Chi Ma, Donato Belmonte, Cristian Biagioni, Fabrizio
Castellaro and Luigi Chiappino
*E-mail: akampf@nhm.org
New structure type
Cubic: P-43m; structure determined
a = 13.389(1) Å
13.37(10), 9.43(24), 4.224(8), 4.043(11), 3.252(9), 2.857(9), 2.730(5), 2.668(5)
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 66691 and 66692
How to cite: Kampf, A.R., Rossman, G.R., Ma, C., Belmonte, D., Biagioni, C., Castellaro, F. and
Chiappino, L. (2018) Ramazzoite, IMA 2017-090. CNMNC Newsletter No. 41, February 2018,
page xxx; Mineralogical Magazine, 82, xxx-xxx.



NEW MINERAL PROPOSALS APPROVED IN JANUARY 2018

IMA No. 2017-092
Siudaite
Na8Mn2+
3Ca6(Fe3+,Mn2+)3Zr3NbSi24(Si,☐,Ti)O72(O,OH)3Cl·4H2O
Eveslogchorr Mt., Astrophyllitovyi Stream valley, Khibiny alkaline massif, Kola Peninsula,
Russia (67°40’02”N, 33°55’28”E)
Nikita V. Chukanov*, Ramiza K. Rastsvetaeva, Łukasz Kruszewski, Sergey M. Aksenov,
Vyacheslav S. Rusakov, Sergey N. Britvin and Svetlana A. Vozchikova
*E-mail: nikchukanov@yandex.ru
Eudialyte group
Trigonal: R3m; structure determined
a = 14.188(3), c = 29.831(7) Å
6.38(60), 5.68(47), 4.29(55), 3.389(47), 3.191(63), 2.963(100), 2.843(99), 2.577(49)
Type material is deposited in the collections of the Mineralogical and Petrographical Section, Museum of Earth PAS (Muzeum Ziemi Polskiej Akademii Nauk), aleja Na Skarpie 20/26, PL-00-488 Warsaw, Poland, catalogue no. MZI III/1/541
How to cite: Chukanov, N., Rastsvetaeva, R.K., Kruszewski, Ł., Aksenov, S.M., Rusakov, V.S., Britvin, S.N. and Vozchikova, S.A. (2018) Siudaite, IMA 2017-092. CNMNC Newsletter No. 41, February 2018, page xxx; Mineralogical Magazine, 82, xxx-xxx.

IMA No. 2017-095
Tantalowodginite
(Mn,☐)TaTa2O8
Emmons pegmatite dyke, exposed on Uncle Tom Mountain, Greenwood, Oxford Co., Maine, USA (44°19’24”N, 70°41’41”)
Sarah L. Hanson, Alexander U. Falster, William B. Simmons, Raymond Sprague, Pietro Vignola*, Nicola Rotiroti, Sergio Andó and Frédéric Hatert
*E-mail: pietro.vignola@idpa.cnr.it
Wodginite group
Monoclinic: C2/c; structure determined
a = 9.542(1), b = 11.488(2), c = 5.128(1) Å, β = 91.13(1)°
7.332(20), 4.741(20), 3.838(30), 3.667(100), 3.000(100), 2.957(100), 2.883(30), 1.778(30)
Type material is deposited in the mineralogical collections of the Maine Mineral and Gem Museum, 99 Main Street, Bethel, Maine, USA, catalogue number MMGM-MP2-12-10-2016
How to cite: Hanson, S.L., Falster, A.U., Simmons, W.B., Sprague, R., Vignola, P., Rotiroti, N., Andó, S. and Hatert, F. (2018) Tantalowodginite, IMA 2017-095. CNMNC Newsletter No. 41, February 2018, page xxx; Mineralogical Magazine, 82, xxx-xxx.

IMA No. 2017-096
Pampaloite
AuSbTe
Pampalo mine (drill core 315, depth 71.50 m), 65 km E of Joensuu, 46 km N of Ilomantsi, Finland (62°59’11”N, 31°15’53”)
Anna Vymazalová*, Kari Kojonen, František Laufek, Bo Johanson, Chris J. Stanley, Jakub Plášil and Patricie Halodová
*E-mail: anna.vymazalova@geology.cz
New structure type
Monoclinic: C2/c; structure determined
a = 11.947(3), b = 4.481(1), c =12.335(3) Å, β = 105.83(2)°
4.846(24), 3.825(18), 2.978(100), 2.968(50), 2.242(25), 2.144(55), 2.063(33), 1.789(18)
Type material is deposited in the mineralogical collections of the Natural History Museum, Cromwell Road, SW7 5BD London, U.K., catalogue No BM 2017,16
How to cite: Vymazalová, A., Kojonen, K., Laufek, F., Johanson, B., Stanley, C.J., Plášil, J. and Halodová, P. (2018) Pampaloite, IMA 2017-096. CNMNC Newsletter No. 41, February 2018, page xxx; Mineralogical Magazine, 82, xxx-xxx.

IMA No. 2017-097
Sbacchiite
Ca2AlF7
In a fossil fumarole (1944 eruption, T ≈ 80°C), Vesuvius volcano crater, Napoli, Italy
Italo Campostrini, Francesco Demartin* and Massimo Russo
*E-mail: francesco.demartin@unimi.it
Chemically related to carlhintzeite
Orthorhombic: Pnma; structure determined
a = 7.665(2), b = 6.993(1), c = 9.566(2) Å
3.840(45), 3.563(85), 3.499(100), 2.899(55), 2.750(30), 2.281(20), 2.255(52), 2.173(36)
Type material is deposited in the reference collection of the Department of Chemistry, University of Milan, Via Golgi 19, I-20133 Milano, Italy, sample no. 2017-01
How to cite: Campostrini, I., Demartin, F. and Russo, M. (2018) Sbacchiite, IMA 2017-097. CNMNC Newsletter No. 41, February 2018, page xxx; Mineralogical Magazine, 82, xxx-xxx.

IMA No. 2017-098
Paddlewheelite
MgCa5Cu2(UO2)4(CO3)12(H2O)33
Klement vein, Svornost mine (5th level), Jáchymov district, Bohemia, Czech Republic (50°22’21”N, 12°54’42”E)
Travis A. Olds*, Jakub Plášil, Anthony R. Kampf, Fabrice Dal Bo and Peter C. Burns
*E-mail: tolds@nd.edu
New structure type
Monoclinic: Pc; structure determined
a = 22.052(4), b = 17.118(3), c = 19.354(3) Å, β = 90.474(2)°
11.12(100), 7.33(46), 6.42(30), 5.54(37), 4.823(33), 4.642(38), 4.215(34), 3.717(33)
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 66696
How to cite: Olds, T.A., Plášil, J., Kampf, A.R., Bo, F. and Burns, P.C. (2018) Paddlewheelite, IMA 2017-098. CNMNC Newsletter No. 41, February 2018, page xxx; Mineralogical Magazine, 82, xxx-xxx.


NOMENCLATURE PROPOSALS APPROVED IN DECEMBER 2017

IMA 17-E – Bobdownsite discredited (and krásnoite redefined)
Proposal 17-E is accepted, and bobdownsite is discredited because it does not contain fluorine, which was its distinguishing characteristic as a new mineral. F-free bobdownsite is equivalent to the mineral whitlockite, although the phase probably lies along the whitlockite-merrillite join. Krásnoite is a valid mineral species, but it does not contain monofluorophosphate anions (PO3F)2–. Instead, fluorine substitutes for hydroxyl groups that are bonded to aluminium, as shown by vibrational and 19F NMR spectroscopic data.

IMA 17-F – Redefinition of montbrayite
Proposal 17-F is accepted, and montbrayite is redefined. Its crystal-chemical formula becomes (Au,Ag,Sb,Bi,Pb)23(Te,Sb,Bi,Pb)38, instead of (Au,Sb)2Te3 as previously reported.

IMA 17-G – Redefinition of gabrielsonite
Proposal 17-G is accepted, and gabrielsonite is redefined as PbFe3+(As3+O3)O, instead of PbFe2+(As5+O4)(OH), previously reported. Indeed, the mineral is anhydrous, and contains iron
almost exclusively in the trivalent state. Consequently, gabrielsonite do not belong to the descloizite supergroup.

Rockbridgeite group
A new classification and nomenclature scheme has been approved for the minerals of the rockbridgeite group. Currently the group includes three mineral species: rockbridgeite, frondelite, and plimerite, plus a number of potentially new mineral species.

MINERAL APPROVAL WITHDRAWN

IMA No. 2000-030a Uvite
Approval for this mineral, which occurred in 2010 (see CNMNC Newsletter 2), has been withdrawn. Subsequent analytical work undertaken by the authors shows this material to be a potentially new oxy-tourmaline.

 

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