Kleinite from Terlingua, Brewster County, Texas

Autor(en)

Gerald Giester, Werner Mikenda, Franz Pertlik

Abstrakt

Modern single crystal x-ray work on kleinite [a = 6.762(2), c = 11.068(3) .ANG.; space group: P63/mmc; Z = 4] confirmed the high-tridymite type Hg2N+ framework. Anions, and anion groups like Cl-, and SO42- or H2O mols. are located within large open channels running parallel to [001]. These groups are statistically and/or dynamically disordered. Reversible order-disorder phenomena of these groups within the Hg2N+ framework are responsible for the change of the whole sym. from "hexagonal" to monoclinic or even triclinic and vice versa. Vibrational spectroscopy shows clearly the presence of disordered SO4 groups, and low H2O content in the above mentioned channels.

Organisation(en)

Institut für Mineralogie und Kristallographie, Institut für Organische Chemie

Journal

Neues Jahrbuch für Mineralogie. Monatshefte

Seiten

49 - 56

Anzahl der Seiten

8

ISSN

0028-3649

Publikationsdatum

1996

Peer-reviewed

Ja

ÖFOS 2012

105116 Mineralogie, 105113 Kristallographie, 104021 Strukturchemie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/kleinite-from-terlingua-brewster-county-texas(2193a0d5-9d3f-4a7c-9f8f-41e71c4d8100).html