Mineralien / Minerals / Minerales > Systematik und Klassifikation / Systematics and Classification

CNMNC Newsletter 65, Dezember 2021 - Januar 2022

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Stefan:
1 New mineral proposals approved in December 2021

IMA 2021-062a
Slyudyankaite
Sdy
Na28Ca4(Si24Al24O96)(SO4)6(S6)0.33(CO2)·2H2O
Malo-Bystrinskoe deposit, Baikal Lake area, eastern Siberia, Russia (51∘40′50′′ N, 103∘25′18′′ E)
Anatoly N. Sapozhnikov, Nadezhda B. Bolotina, Nikita V. Chukanov, Ekaterina V. Kaneva, Roman Y. Shendrik, Marina F. Vigasina, and Larisa A. Ivanova
Sodalite-Gruppe; Struktur ermittelt
Triklin
P1
a= 9.0523(4), b= 12.8806(6), c= 25.681(1) Å, α= 89.988(2), β= 90.052(1), γ= 90.221(1)∘
12.93(6), 6.45(20), 3.716(100), 2.878(12), 2.625(23), 2.431(6), 2.143(11), 1.784(9)
Type material is deposited in the collections of the Sidorov Mineralogical Museum (INRTU), Lermontova St. 83, Irkutsk 664074, Russia, registration numbers MMU/MF 27296 (holotype) and MMU/MF 27297 (cotype)
Sapozhnikov, A. N., Bolotina, N. B., Chukanov, N. V., Kaneva, E. V., Shendrik, R. Y., Vigasina, M. F., and Ivanova, L. A.: Slyudyankaite, IMA 2021-062a, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-081
Kozłowskiite
Kzw
Ca4Fe2+Sn3(Si2O7)2(Si2O6OH)2
In a pegmatite of the Karkonosze granite, Szklarska Poręba Huta quarry, Lower Silesia, Poland (50∘49′40′′ N, 15∘29′22′′ E)
Adam Pieczka, Sylwia Zelek-Pogudz, Bożena Gołębiowska, Katarzyna M. Stadnicka, and R. James Evans
Kristiansenite-Gruppe; Struktur ermittelt
Triklin
C1
a= 10.0170(3), b= 8.3860(2), c= 13.3421(4) Å, α= 90, β= 109.050(3), γ= 90∘
5.190(73), 4.569(30), 3.906(19), 3.153(65), 3.094(28), 3.089(100), 2.595(27), 2.141(31)
Type material is deposited in the collections of the Mineralogical Museum, University of Wrocław, Cybulskiego 30, 50–205 Wrocław, Poland, catalogue number MMWr IV7929
Pieczka, A., Zelek-Pogudz, S., Gołębiowska, B., Stadnicka, K. M., and Evans, R. J.: Kozłowskiite, IMA 2021-081, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-082
Medvedevite
Mvv
KMn2+V2O6Cl·2H2O
Toludskoe lava field, 2012–2013 Tolbachik Fissure Eruption, Plosky Tolbachik volcano, Kamchatka, Russia (55∘45′02′′ N, 160∘19′41′′ E)
Andrey P. Shablinskii, Margarita S. Avdontseva, Lidiya P. Vergasova, Stanislav K. Filatov, Evgenia Y. Avdontseva, Alexey V. Povolotskiy, Svetlana V. Moskaleva, Anatoly A. Kargopoltsev, and Sergey N. Britvin
Neuer Strukturtyp; Struktur ermittelt
Monoklin
P21/c
a= 7.1863(2), b= 10.1147(3), c= 12.7252(4) Å, β= 106.243(3)∘
7.79(100), 5.70(11), 4.75(14), 3.89(29), 3.25(53), 3.05(19), 2.958(79), 2.850(33)
Type material is deposited in the collections of the Saint Petersburg State University mineralogical museum, University Emb. 7/9, St. Petersburg 199034, Russia, catalogue number 1/19900
Shablinskii, A. P., Avdontseva, M. S., Vergasova, L. P., Filatov, S. K., Avdontseva, E. Y., Povolotskiy, A. V., Moskaleva, S. V., Kargopoltsev, A. A., and Britvin, S. N.: Medvedevite, IMA 2021-082, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-083
Tennantite-(Cd)
Tnt-Cd
Cu6(Cu4Cd2)As4S13
Berenguela mining district, Pacajes Province, La Paz, Bolivia
Cristian Biagioni, Anatoly V. Kasatkin, Jiří Sejkora, Fabrizio Nestola, and Radek Škoda
Tetrahedrite-Gruppe; Struktur ermittelt
Kubisch
I-43m
a= 10.3088(2) Å
4.206(7), 2.973(100), 2.574(12), 2.428(4), 2.019(3), 1.881(5), 1.821(27), 1.553(8)
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 5755/1 (holotype), and the Department of Mineralogy and Petrology, National Museum of Prague, Cirkusová 1740, 19300 Prague 9, Czech Republic, registration number P1P 47/2021 (cotype)
Biagioni, C., Kasatkin, A. V., Sejkora, J., Nestola, F., and Škoda, R.: Tennantite-(Cd), IMA 2021-083, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-084
Höslite
Hös
Fe3+3(VO4)2(SO4)(OH)(H2O)4·3H2O
Struhadlo deposit, near the Struhadlo village, 10 km west of Klatovy, Plzeň region, Southern Bohemia, Czech Republic (49∘23′51.11′′ N, 13∘11′20.61′′ E)
Pavel Škácha, Jiří Sejkora, Gwladys Steciuk, Jakub Plášil, and Radek Škoda
Structurally similar to schubnelite; Struktur ermittelt
Monoklin
P21/c
a= 8.657(3), b= 10.443(4), c= 20.4996(7) Å, β= 93.32(2)∘
10.233(100), 6.800(17), 6.422(9), 5.116(10), 3.411(12), 3.233(8), 3.179(13), 3.125(9)
Type material is deposited in the collections of the Department of Mineralogy and Petrology, National Museum in Prague, Cirkusová 1740, 19300 Prague 9, Czech Republic, catalogue number P1P 30/2021
Škácha, P., Sejkora, J., Steciuk, G., Plášil, J., and Škoda, R.: Höslite, IMA 2021-084, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-086
Gurzhiite
Grz
Al(UO2)(SO4)2F·10H2O
495 m level of the underground Mine 2, Bykogorskoe U deposit, Byk Mountain, Stavropol Krai, Northern Caucasus, Russia (44∘11′05.4′′ N, 42∘57′31.5′′ E)
Anatoly V. Kasatkin, Jakub Plášil, Nikita V. Chukanov, Radek Škoda, Fabrizio Nestola, Atali A. Agakhanov, and Dmitry I. Belakovskiy
A lower hydrate of straßmannite, with different structure; Struktur ermittelt
Triklin
P-1
a= 7.193(2), b= 11.760(2), c= 11.792(2) Å, α= 67.20(3), β= 107.76(3), γ= 89.99(3)∘
10.24(100), 6.76(10), 5.40(14), 5.11(54), 3.618(8), 3.405(11), 3.348(7), 3.065(11)
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 5756/1
Kasatkin, A. V., Plášil, J., Chukanov, N. V., Škoda, R., Nestola, F., Agakhanov, A. A., and Belakovskiy, D. I.: Gurzhiite, IMA 2021-086, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-088
Bolotinaite
Bltn
(Na7☐)(Al6Si6O24)F·4H2O
In den Dellen (Zieglowski) pumice quarry, 1.5 km northeast of Mendig, Laach Lake (Laacher See) paleovolcano, Eifel region, Rhineland-Palatinate, Germany (50∘23′34′′ N, 7∘17′04′′ E)
Nikita V. Chukanov, Natalia V. Zubkova, Christof Schäfer, Igor V. Pekov, Marina F. Vigasina, Dmitry I. Belakovskiy, Sergey N. Britvin, Vasiliy O. Yapaskurt, and Dmitry Y. Pushcharovsky
Sodalite-Gruppe; Struktur ermittelt
Kubisch
I-43m
a= 9.0228(1) Å
6.36(47), 4.502(10), 3.679(100), 2.851(28), 2.603(29), 2.126(18), 1.770(7), 1.595(7)
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 5754/1
Chukanov, N. V., Zubkova, N. V., Schäfer, C., Pekov, I. V., Vigasina, M. F., Belakovskiy, D. I., Britvin, S. N., Yapaskurt, V. O., and Pushcharovsky, D. Y.: Bolotinaite, IMA 2021-088, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-089
Sulfatoredmondite
Srdm
[Pb8O2Zn(OH)6](SO4)4·6H2O
Redmond mine, Haywood Co., North Carolina, USA (35∘40′49′′ N, 83∘01′07′′ W)
Anthony R. Kampf, Jason B. Smith, John M. Hughes, Chi Ma, and Christopher Emproto
Strukturell verwandt mit redmondite und hydroredmondite; Struktur ermittelt
Monoklin
C2/m
a= 17.294(2), b= 7.3668(9), c= 12.727(2) Å, β= 110.622(9)∘
8.10(100), 6.23(48), 5.86(46), 3.115(78), 2.892(63), 2.779(63), 2.706(47), 1.827(46)
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 76181, 76182 and 76183
Kampf, A. R., Smith, J. B., Hughes, J. M., Ma, C., and Emproto, C.: Sulfatoredmondite, IMA 2021-089, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.


2 New mineral proposals approved in January 2022

IMA 2021-090
Calcioancylite-(La)
Canc-La
(LaCa)(CO3)2(OH)(H2O)
Gejiu intrusion, Honghe Hani and Yi Autonomous Prefecture, Yunnan Province, China (23∘29′40′′ N, 103∘04′41′′ E)
Yanjuan Wang, Xiangping Gu, Guochen Dong, Zenqian Hou, Zhusen Yang, Guang Fan, Yufei Wang, Chao Tang, Yinhang Cheng, and Kai Qu
Ancylite-Gruppe; Struktur ermittelt
Orthorhombisch
Pmcn
a= 5.0253(3), b= 8.5152(6), c= 7.2717(6) Å
4.322(75), 3.693(68), 2.956(80), 2.640(47), 2.520(55), 2.335(100), 2.077(44), 2.012(42)
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 M16129
Wang, Y., Gu, X., Dong, G., Hou, Z., Yang, Z., Fan, G., Wang, Y., Tang, C., Cheng, Y., and Qu, K.: Calcioancylite-(La), IMA 2021-090, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-091
Cubothioplumbite
Ctpb
[Pb4(OH)4]Pb(S2O3)3
Redmond mine, Haywood Co., North Carolina, USA (35∘40′49′′ N, 83∘01′07′′ W)
Anthony R. Kampf, Jason B. Smith, John M. Hughes, Chi Ma, and Christopher Emproto
A dimorph of hexathioplumbite (IMA no. 2021-092; this newsletter)
Kubisch
Pa-3
; structure determined
a= 14.918(1) Å
5.28(56), 3.732(57), 3.619(100), 3.346(64), 3.262(81), 2.490(92), 1.803(52), 1.700(49)
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 76184, 76185 and 76186

IMA 2021-092
Hexathioplumbite
Htpb
[Pb4(OH)4]Pb(S2O3)3
Redmond mine, Haywood Co., North Carolina, USA (35∘40′49′′ N, 83∘01′07′′ W)
Anthony R. Kampf, Jason B. Smith, John M. Hughes, Chi Ma, and Christopher Emproto
A dimorph of cubothioplumbite (IMA no. 2021-091; this newsletter); Struktur ermittelt
Hexagonal
P63
a= 10.721(1), c= 8.6541(6) Å
6.32(67), 3.511(100), 3.359(70), 3.249(86), 2.733(77), 2.536(89), 2.476(43), 1.837(52)
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 76187, 76188 and 76189
Kampf, A. R., Smith, J. B., Hughes, J. M., Ma, C., and Emproto, C.: Hexathioplumbite, IMA 2021-092, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-094
Ferrofettelite
Fftt
[Ag6As2S7][Ag10FeAs2S8]
Glasberg quarry, Nieder-Beerbach, Odenwald, Germany (49∘47′49′′ N, 8∘41′38′′ E)
Luca Bindi and Robert T. Downs
Das Fe Analog von fettelite; Struktur ermittelt
Monoklin
C2
a= 26.011(2), b= 15.048(1), c= 15.513(1) Å, β= 90.40(1)∘
3.18(50), 3.014(100), 3.004(60), 2.930(15), 2.755(40), 2.501(30), 2.484(20), 1.880(30)
Type material is deposited in the collections of the University of Arizona Gem and Mineral Museum, 115 N Church Ave., Tucson, AZ 85701, USA, catalogue number 22716
Bindi, L., and Downs, R. T.: Ferrofettelite, IMA 2021-094, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-096
Franksousaite
Fns
PbCu(Se6+O4)(OH)2
El Dragón mine, Antonio Quijarro Province, Potosí Department, Bolivia (19∘49′15′′ S, 65∘55′00′′ W)
Hexiong Yang, James A. McGlasson, Ronald B. Gibbs, and Robert T. Downs
Das Se6+ Analog von linarite
Monoklin
P21/m
; structure determined
a= 9.8208(3), b= 5.7340(2), c= 4.7498(1) Å, β= 102.683(2)∘
9.548(22), 4.917(24), 4.578(35), 3.602(60), 3.193(100), 3.150(50), 2.621(21), 1.828(21)
Type material is deposited in the collections of the University of Arizona Gem and Mineral Museum, 115 N Church Ave., Tucson, AZ 85701, USA, catalogue number 22713 (holotype), and the RRUFF Project, deposition number R210012 (cotype)

IMA 2021-097
Mariakrite
Mari
[Ca4Al2(OH)12(H2O)4][Fe2S4]
Ca. 2 km south-east of the Hatrurim Junction (road no. 31), Hatrurim Basin, Negev Desert, Israel
Michail N. Murashko, Yevgeny Vapnik, Natalia S. Vlasenko, Oleg S. Vereshchagin, Yulia S. Shelukhina, Igor V. Pekov, and Sergey N. Britvin
Hydrotalcite-Supergruppe; Struktur ermittelt
Triklin
P-1
a= 5.7107(2), b= 9.9952(4), c= 10.9095(4) Å, α= 98.678(3), β= 90.100(3), γ= 90.019(3)∘
10.83(100), 9.90(39), 5.42(75), 3.96(22), 3.523(19), 2.856(37), 2.400(23), 2.241(20)
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 5694/1
Murashko, M. N., Vapnik, Y., Vlasenko, N. S., Vereshchagin, O. S., Shelukhina, Y. S., Pekov, I. V., and Britvin, S. N.: Mariakrite, IMA 2021-097, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.

IMA 2021-098
Tetrahedrite-(Mn)
Ttr-Mn
Cu6(Cu4Mn2)Sb4S13
Teine mine, Sapporo, Hokkaido, Japan (43∘05′58′′ N, 141∘ 11′48′′ E)
Koichi Momma, Masaaki Shimizu, Yoko Kusaba, and Yoshiya Ohki
Tetrahedrite-Gruppe; Struktur ermittelt
Kubisch
I-43m
a= 10.35953(6) Å
3.669(9), 2.995(100), 2.773(6), 2.593(15), 2.445(7), 1.893(6), 1.833(29), 1.563(12)
Type material is deposited in the mineralogical collections of the National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan, specimen number MSN-M49019
Momma, K., Shimizu, M., Kusaba, Y., and Ohki, Y.: Tetrahedrite-(Mn), IMA 2021-098, in: CNMNC Newsletter 65, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-143-2022, 2022.


3 Nomenclature/classification proposals approved in January 2022

3.1 Revised formula for lithiomarsturite, LiCaMn3Si5O14(OH)
In the IMA List of Minerals the chemical formula of lithiomarsturite is given as . However, a crystal structure study carried out on holotype material (Am. Mineral., 75, 409–414, 1990) clearly shows that Ca is hosted at the 7-fold coordinated M4 site (M4Ca1.00), whereas Mn is the dominant constituent at the three 6-fold coordinated sites: M1Mn1.00, M2(Mn0.77Ca0.23), and M3Mn1.00. Accordingly, the end-member formula should be written as LiCaMn3Si5O14(OH). This formula matches the formula of the related mineral marsturite, NaCaMn3Si5O14(OH). This is an executive decision taken by the officers of the IMA-CNMNC.

3.2 IMA 21-I: a proposed correction to the formula of rouvilleite

Proposal 21-I is accepted, and the formula of rouvilleite is changed from Na3CaMn2+(CO3)3F to Na3Ca2(CO3)3F.

3.3 IMA 21-J: redefinition of angastonite as an amorphous mineral

Proposal 21-J is accepted, and angastonite is redefined as an amorphous mineral species, with the ideal formula CaMgAl2(PO4)2(OH)4•7H2O.

3.4 IMA 21-K: grandviewite, Cu3Al2(SO4)(OH)10•H2O: proposal for its redefinition

Proposal 21-K is accepted, and grandviewite is redefined as a hydrated copper–aluminum hydroxy-sulfate, having the ideal formula Cu3Al2(SO4)(OH)10•H2O (Z= 2) and a triclinic symmetry, with space group , a= 6.002(3), b= 10.54(3), c= 11.249(8) Å, α= 72.1(2), β= 81.6(6), γ= 86.1(8)∘.

3.5 IMA 21-L: discreditation of luinaite-(OH), (Na,□)(Fe2+,Mg)3Al6(BO3)3Si6O18(OH)4, a mineral species of the tourmaline supergroup

Proposal 21-L is accepted, and luinaite-(OH) is discredited. This monoclinic tourmaline-type species, with a simplified composition (Na,□)(Fe2+,Mg)3Al6(BO3)3Si6O18(OH)4, was approved with IMA number 2009-046. It is now considered a structurally similar polymorph of schorl, since it only differs in terms of a slight structural distortion from the typical trigonal tourmaline structure.

guefz:
Bolotinait hatte ich die Tage schon angelegt bis auf die Abkürzung.

Stefan:
Kleiner Tip, wenn Du "I-43m" bei Raum­gruppe einträgst füllen sich die Felder darüber automatisch.  ;)

guefz:
Wird das mit dem Strich oberhalb dann auch automatisch angepasst?

Stefan:
Ja wird alles angepasst.

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