Articles | Volume 34, issue 3
https://doi.org/10.5194/ejm-34-359-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-34-359-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
CNMNC Newsletter
| 
15 Jun 2022
CNMNC Newsletter |
| 15 Jun 2022
IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 67
Ritsuro Miyawaki
Chairman, CNMNC | Department of Geology, National Museum of
Nature and Science, 4-1-1 Amakubo, Tsukuba 305-0005, Japan
Frédéric Hatert
Vice-Chairman, CNMNC | Laboratoire de Minéralogie,
Université de Liège, Bâtiment B18, Sart Tilman, 4000 Liège, Belgium
Marco Pasero
CORRESPONDING AUTHOR
Vice-Chairman, CNMNC | Dipartimento di Scienze della Terra,
Università di Pisa, Via Santa Maria 53, 56126 Pisa, Italy
Stuart J. Mills
Secretary, CNMNC | Geosciences, Museum Victoria, P.O. Box 666, Melbourne, Victoria 3001, Australia
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The name sigismundite has been reinstated for what was previously arrojadite-(BaFe). Sigismundite honours Pietro Sigismund (1874–1962), and this paper outlines his significant contributions to Italian mineralogy.
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A reinvestigation of angastonite from the type locality has shown that it is a mixture of crystalline phases and an amorphous phase, with the published formula corresponding to the amorphous phase. A redefinition proposal for angastonite as an amorphous mineral was approved by the IMA CNMNC. Our study showed how the amorphous phase formed and how it progressively recrystallises as new crandallite-related minerals.
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Eur. J. Mineral., 34, 143–148, https://doi.org/10.5194/ejm-34-143-2022, https://doi.org/10.5194/ejm-34-143-2022, 2022
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 34, 1–6, https://doi.org/10.5194/ejm-34-1-2022, https://doi.org/10.5194/ejm-34-1-2022, 2022
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
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Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 33, 479–484, https://doi.org/10.5194/ejm-33-479-2021, https://doi.org/10.5194/ejm-33-479-2021, 2021
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 33, 299–304, https://doi.org/10.5194/ejm-33-299-2021, https://doi.org/10.5194/ejm-33-299-2021, 2021
Yannick Bruni, Frédéric Hatert, Philippe George, Hélène Cambier, and David Strivay
Eur. J. Mineral., 33, 221–232, https://doi.org/10.5194/ejm-33-221-2021, https://doi.org/10.5194/ejm-33-221-2021, 2021
Short summary
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The reliquary crown, hosted in the diocesan museum of Namur (Belgium), was produced during the beginning of the 13th century. This beautiful piece of goldsmithery is decorated with approximately 400 pearls and coloured stones which were investigated by Raman and pXRF techniques. Emeralds, pink spinels, sapphires, almandine garnets, turquoises, and pearls were identified. The gemstones, contemporary with the crown, probably arrived in Europe by the silk trade road.
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 33, 203–208, https://doi.org/10.5194/ejm-33-203-2021, https://doi.org/10.5194/ejm-33-203-2021, 2021
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 33, 139–143, https://doi.org/10.5194/ejm-33-139-2021, https://doi.org/10.5194/ejm-33-139-2021, 2021
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 32, 645–651, https://doi.org/10.5194/ejm-32-645-2020, https://doi.org/10.5194/ejm-32-645-2020, 2020
Stuart J. Mills, Uwe Kolitsch, Georges Favreau, William D. Birch, Valérie Galea-Clolus, and Johannes Markus Henrich
Eur. J. Mineral., 32, 637–644, https://doi.org/10.5194/ejm-32-637-2020, https://doi.org/10.5194/ejm-32-637-2020, 2020
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 32, 495–499, https://doi.org/10.5194/ejm-32-495-2020, https://doi.org/10.5194/ejm-32-495-2020, 2020
Simon Philippo, Frédéric Hatert, Yannick Bruni, Pietro Vignola, and Jiří Sejkora
Eur. J. Mineral., 32, 449–455, https://doi.org/10.5194/ejm-32-449-2020, https://doi.org/10.5194/ejm-32-449-2020, 2020
Short summary
Short summary
Luxembourgite, ideally AgCuPbBi4Se8, is a new selenide discovered at Bivels, Grand Duchy of Luxembourg. The mineral forms tiny fibres deposited on dolomite crystals. Its crystal structure is similar to those of litochlebite and watkinsonite, and can be described as an alternation of two types of anionic layers: a pseudotetragonal layer four atoms thick and a pseudohexagonal layer one atom thick. The species named for the city of Luxembourg, close to its locality of discovery.
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 32, 443–448, https://doi.org/10.5194/ejm-32-443-2020, https://doi.org/10.5194/ejm-32-443-2020, 2020
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 32, 367–371, https://doi.org/10.5194/ejm-32-367-2020, https://doi.org/10.5194/ejm-32-367-2020, 2020
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 32, 275–283, https://doi.org/10.5194/ejm-32-275-2020, https://doi.org/10.5194/ejm-32-275-2020, 2020
Jan Parafiniuk and Frédéric Hatert
Eur. J. Mineral., 32, 215–217, https://doi.org/10.5194/ejm-32-215-2020, https://doi.org/10.5194/ejm-32-215-2020, 2020
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 32, 209–213, https://doi.org/10.5194/ejm-32-209-2020, https://doi.org/10.5194/ejm-32-209-2020, 2020
Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 32, 1–11, https://doi.org/10.5194/ejm-32-1-2020, https://doi.org/10.5194/ejm-32-1-2020, 2020
