Crystal structure of sideronatrite-2M, Na₂Fe(SO₄)₂(OH)(H₂O)₃, a new polytype from Xitieshan lead-zinc deposit, Qinghai Province, China

Autor(en)

Zhuming Yang, Gerald Giester, Kuishou Ding, He Li

Abstrakt

A monoclinic (2M) polytype of sideronatrite, Na2Fe(SO4)2(OH)(H2O)3, was found at Xitieshan, Qinghai Province, China. The crystal structure was solved by direct methods and refined by full-matrix least-squares (R1 = 3.88 %) in the space group P121/n1 with a = 7.1559(14), b = 7.2845(15), c = 20.889(4)Å, ß = 99.37(3)°, V = 1074.4(4)Å3, and Z = 4, using 2207 observed reflections with I > 2s(I). The atomic arrangement of sideronatrite-2M confirms a theoretical model in space group P21/a, previously proposed in literature. The structure of sideronatrite-2M is based on ferric-sulfate chains of 7 Å periodicity, similar to those observed in the structures of the orthorhombic polytype and of metasideronatrite. The system of hydrogen bonds has been determined.

Organisation(en)

Institut für Mineralogie und Kristallographie

Externe Organisation(en)

Chinese Academy of Sciences (CAS)

Journal

European Journal of Mineralogy: an international journal of mineralogy, geochemistry and related sciences

Band

27

Seiten

427-432

Anzahl der Seiten

6

ISSN

0935-1221

DOI

https://doi.org/10.1127/ejm/2015/0027-2441

Publikationsdatum

06-2015

Peer-reviewed

Ja

ÖFOS 2012

105116 Mineralogie, 105113 Kristallographie

Schlagwörter

ASJC Scopus Sachgebiete

Geochemistry and Petrology

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/crystal-structure-of-sideronatrite2m-na2feso42ohh2o3-a-new-polytype-from-xitieshan-leadzinc-deposit-qinghai-province-china(9c313dfc-3841-4c82-8c16-469876ad6ed4).html