European Journal of Mineralogy; September, October 2006; v. 18; no. 5;
p. 551-567; DOI: 10.1127/0935-1221/2006/0018-0551
© 2006 E. Schweizerbart'sche Verlagsbuchhandlung Science Publishers
Recommended nomenclature of epidote-group minerals
Thomas ARMBRUSTER, Chairman1,*,
Paola BONAZZI, Vice-chairman2,
Masahide AKASAKA3,
Vladimir BERMANEC4,
Christian CHOPIN5,
Reto GIERÉ6,
Soraya HEUSS-ASSBICHLER7,
Axel LIEBSCHER8,
Silvio MENCHETTI2,
Yuanming PAN9 and
Marco PASERO10
1 Laboratorium für chemische und mineralogische Kristallographie, Universität Bern, Freiestr. 3, CH-3012 Bern, Switzerland
2 Dipartimento di Scienze della Terra dell'Università di Firenze, Via La Pira 4,I-50121 Firenze, Italy
3 Department of Geoscience, Faculty of Science and Engineering, Shimane University, 1060 Nishikawatsu, Matsue 690, Japan
4 Geoloski odsjek, Mineralosko petrografski zavod PMF-a, University of Zagreb, Horvatovac bb, HR-1000 Zagreb, Croatia
5 Laboratoire de Géologie, UMR 8538 du CNRS, Ecole Normale Supérieure, 24 rue Lhomond, F-75005 Paris, France
6 Mineralogisch-Geochemisches Institut, Albert-Ludwigs-Universität, Albertstrasse 23b, D-79104 Freiburg, Germany
7 Department für Geo- und Umweltwissenschaften, Sektion Mineralogie, Petrologie und Geochemie, Ludwig-Maximilians-Universität, Theresienstraße 41/III,D-80333 München, Germany
8 Department 4 Chemistry of the Earth, GeoForschungsZentrum Potsdam, Telegrafenberg, D-14473 Potsdam, Germany
9 Department of Geological Sciences, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada
10 Dipartimento di Scienze della Terra, Università di Pisa, Via S. Maria 53,I-56126 Pisa, Italy

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Fig. 1. Top: Polyhedral model of the clinozoisite structure (space group P21/m) projected along the b-axis. TO4 tetrahedra are in yellow, T2O7 groups are in red, octahedra in green, A sites are shown as blue spheres (A1 dark blue, A2 light blue); Bottom: Linkage of octahedral sites forming chains parallel to the b-axis. H atoms on the chain formed by M2 octahedra are shown as small white spheres.
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