IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 59 (original) (raw)

IMA no. 2018-135a

• Xuite
• Ca3Fe2[(AlO3(OH)]3
• Menan volcanic complex, near Rexburg, Madison Co., Idaho, USA (43∘47′03′′ N, 111∘58′23′′ W – holotype); paralava from Gillette, Campbell Co., Wyoming, USA (cotype)
• Seungyeol Lee* and Xiaofeng Guo
• *E-mail: slee2@lpi.usra.edu
• Garnet supergroup
• Cubic: _Ia_3‾d; structure determined
• _a_=12.5056(5) Å
• 5.106(16), 4.421(65), 3.342(24), 3.126(62), 2.796(100), 2.666(15), 2.552(63), 2.028(5)
• Type material is deposited in the mineralogical collections of the Geology Museum of the Department of Geoscience, University of Wisconsin-Madison, 1215 West Dayton Street, Madison, WI 53706, USA, catalogue numbers UWGM 2341 (holotype – Rexburg), UWGM 2342, UWGM 2343, UWGM 2352, and UWGM 2353 (cotypes – Rexburg and Gillette)
• How to cite: Lee, S. and Guo, X.: Xuite, IMA 2018-135a, in: CNMNC Newsletter 59, Eur. J. Mineral., 33, https://doi.org/10.5194/ejm-33-139-2021, 2021.

IMA no. 2020-066

• Hydroxymcglassonite-(K)
• KSr4Si8O20(OH)•8H2O
• Wessels mine, Kalahari manganese fields, Northern Cape Province, South Africa (27∘06′51.82′′ S, 22∘51′18.31′′ E)
• Hexiong Yang*, Xiangping Gu, and Michael M. Scott
• *E-mail: hyang@arizona.edu
• Apophyllite group
• Tetragonal: _P_4/mcn; structure determined
• _a_=9.0792(2), _c_=16.1551(9) Å
• 8.008(94), 4.539(42), 3.940(50), 3.638(81), 3.055(34), 2.993(58), 2.800(28), 2.538(100)
• Type material is deposited in the collections of the University of Arizona Mineral Museum, 1601 E University Blvd, Tucson, AZ 85719, USA, catalogue number 22691 (holotype), and the RRUFF Project, deposition number R200004 (cotype)
• How to cite: Yang, H., Gu, X., and Scott, M. M.: Hydroxymcglassonite-(K), IMA 2020-066, in: CNMNC Newsletter 59, Eur. J. Mineral., 33, https://doi.org/10.5194/ejm-33-139-2021, 2021.

IMA no. 2020-067

• Donowensite
• Ca(H2O)3Fe23+(V2O7)2
• North Wilson pit, Wilson Springs mine (also known as Union Carbide mine), Wilson Springs (also known as Potash Sulfur Springs), Garland Co., Arkansas, USA (34∘28′40′′ N, 92∘58′05′′ W)
• Anthony R. Kampf*, John M. Hughes, Barbara P. Nash, and Jason B. Smith
• *E-mail: akampf@nhm.org
• New structure type
• Triclinic: P1‾; structure determined
• _a_=7.3452(4), _b_=9.9291(4), _c_=10.0151(7) Å,
  _α_=94.455(7), _β_=98.476(7), _γ_=100.779(7)∘
• 9.88(100), 7.12(24), 4.176(17), 3.671(20), 3.283(44), 3.202(22), 3.110(19), 2.973(26)
• 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 75041 and 75042
• How to cite: Kampf, A. R., Hughes, J. M., Nash, B. P., and Smith, J. B.: Donowensite, IMA 2020-067, in: CNMNC Newsletter 59, Eur. J. Mineral., 33, https://doi.org/10.5194/ejm-33-139-2021, 2021.

IMA no. 2020-068

• Mikehowardite
• Fe43+(V5+O4)4(H2O)2•H2O
• North Wilson pit, Wilson Springs mine (also known as Union Carbide mine), Wilson Springs (also known as Potash Sulfur Springs), Garland Co., Arkansas, USA (34∘28′40′′ N, 92∘58′05′′ W)
• Anthony R. Kampf*, John M. Hughes, Barbara P. Nash, and Jason B. Smith
• *E-mail: akampf@nhm.org
• Structurally related to schubnelite
• Triclinic: P1‾; structure determined
• _a_=6.655(2), _b_=6.669(1), _c_=9.003(2) Å, _α_=76.515(5),_β_=84.400(6), _γ_=75.058(5)∘
• 8.799(86), 6.449(100), 3.693(29), 3.198(88), 2.982(50), 2.909(59), 2.792(31), 2.145(30)
• 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 75041 and 75042
• How to cite: Kampf, A. R., Hughes, J. M., Nash, B. P., and Smith, J. B.: Mikehowardite, IMA 2020-068, in: CNMNC Newsletter 59, Eur. J. Mineral., 33, https://doi.org/10.5194/ejm-33-139-2021, 2021.

IMA no. 2020-069

• Argentotetrahedrite-(Zn)
• Ag6(Cu4Zn2)Sb4S13
• Kremnica deposit, Žiar nad Hronom District, Banská Bystrica Region, Slovakia (48∘42′44′′ N, 18∘54′07′′ E – type locality); Lengenbach quarry, Imfeld, Binn Valley, Canton of Valais, Switzerland (46∘21′54′′ N, 8∘13′15′′ E – cotype locality)
• Jiří Sejkora, Cristian Biagioni*, Martin Števko, Thomas Raber, and Philippe Roth
• *E-mail: cristian.biagioni@unipi.it
• Tetrahedrite group
• Cubic: I4‾3m; structure determined
• _a_=10.550(1) Å
• 7.460(24), 3.046(100), 2.820(6), 2.638(23), 2.487(6), 2.249(6), 1.865(35), 1.591(18)
• Type material is deposited in the collections of the Department of Mineralogy and Petrology, National Museum in Prague, Cirkusová 1740, 19300 Praha 9, Czech Republic, catalogue number P1P 51/2020 (Kremnica), and the Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), catalogue numbers 19922 (Kremnica) and 19923 (Lengenbach)
• How to cite: Sejkora, J., Biagioni, C., Števko, M., Raber, T., and Roth, P.: Argentotetrahedrite-(Zn), IMA 2020-069, in: CNMNC Newsletter 59, Eur. J. Mineral., 33, https://doi.org/10.5194/ejm-33-139-2021, 2021.

IMA no. 2020-070

• Zolenskyite
• FeCr2S4
• Indarch meteorite, fell on 7 April 1891 at Shusha, Azerbaijan (40∘04′09′′ N, 47∘12′15′′ E)
• Chi Ma*
• *E-mail: chima@caltech.edu
• The Fe analogue of brezinaite and a dimorph of daubréelite
• Monoclinic: _C_2/m
• _a_=12.84(1), _b_=3.44(1), _c_=5.94(1) Å, _β_=117(1)∘
• 5.251(52), 2.977(47), 2.646(92), 2.625(46), 2.067(93), 2.057(100), 1.720(47), 1.716(78)
• Type material is deposited in the meteorite collection of the Division of Geological and Planetary Sciences, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA, catalogue numbers ICM1 and ICM3
• How to cite: Ma, C.: Zolenskyite, IMA 2020-070, in: CNMNC Newsletter 59, Eur. J. Mineral., 33, https://doi.org/10.5194/ejm-33-139-2021, 2021.

IMA no. 2020-071

• Makotoite
• Ag12(Cu3Au)S8
• Funan gold deposit, ca. 16 km west of Zhaoyuan, Shandong Province, China (37∘23′34′′ N, 120∘16′05′′ E)
• Xiangping Gu*
• *E-mail: guxp2004@163.com
• The Cu–Au-ordered analogue of uytenbogaardtite
• Trigonal: R3‾c; structure determined
• _a_=13.584(2), _c_=16.781(3) Å
• 6.873(29), 2.788(16), 2.690(74), 2.576(100), 2.339(32), 2.104(44), 1.970(34), 1.762(19)
• Type material is deposited in the mineralogical collection of the Geological Museum of China, No. 16, Yangrou Hutong, Xisi, Beijing 100031, People's Republic of China, catalogue number M16110
• How to cite: Gu, X.: Makotoite, IMA 2020-071, in: CNMNC Newsletter 59, Eur. J. Mineral., 33, https://doi.org/10.5194/ejm-33-139-2021, 2021.

IMA no. 2020-072

• Thebaite-(NH4)
• (NH4)3Al(C2O4)(PO3OH)2(H2O)
• The 125-foot level of the Rowley mine, ca. 20 km northwest of Theba, Maricopa Co., Arizona, USA (33∘02′57′′ N, 113∘01′58′′ W)
• Anthony R. Kampf*, Mark A. Cooper, Aaron J. Celestian, Barbara P. Nash, and Joe Marty
• *E-mail: akampf@nhm.org
• New structure type
• Monoclinic: _P_21/c; structure determined
• _a_=11.156(9), _b_=6.234(6), _c_=18.65(2) Å, _β_=102.93(1)∘
• 9.21(88), 7.88(24), 5.39(44), 4.93(26), 4.56(32), 3.350(39), 3.112(100), 2.964(42)
• 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 75082
• How to cite: Kampf, A. R., Cooper, M. A., Celestian, A. J., Nash, B. P., and Marty, J.: Thebaite-(NH4), IMA 2020-072, in: CNMNC Newsletter 59, Eur. J. Mineral., 33, https://doi.org/10.5194/ejm-33-139-2021, 2021.