Mossbauer spectra of priderite and synthetic iron-bearing hollandite

Authors
McCammon, C Mitchell, RH Chakhmouradian, AR
Citation
C. Mccammon et al., Mossbauer spectra of priderite and synthetic iron-bearing hollandite, CAN MINERAL, 37, 1999, pp. 991-995
Citations number
17
Categorie Soggetti
Earth Sciences
Journal title
CANADIAN MINERALOGIST
ISSN journal
00084476 → ACNP
Volume
37
Year of publication
1999
Part
4
Pages
991 - 995
Database
ISI
SICI code
0008-4476(199908)37:<991:MSOPAS>2.0.ZU;2-7
Abstract
Mossbauer spectra for synthetic iron-bearing hollandites with nominal compo sitions of K2Fe2Ti6O16 and BaFe2Ti6O16 and one natural sample of priderite were recorded at room temperature. All iron in the phases was found to occu r as octahedral Fe3+ with no evidence for Fe2+. Quadrupole splitting values show a trend consistent with increasing bond-length deviation of the octah edral sites.