Article
Raman Spectra of Vateritic Calcium Carbonate
Spectroscopy Letters
(1995)
Abstract
The Raman spectrum of polycrystalline vaterite is presented and compared to spectra of calcite and aragonite, the other two common CaCO3 polymorphs; Raman spectroscopy easily distinguishes between these three polymorphs. An important feature of the Raman spectrum of vaterite is splitting of both the ν1 and ν4 peaks. The splitting of the ν1 peak implies two distinct site symmetries for the CO3-2 groups. A definitive crystal structure determination of vaterite is not yet available, but none of the three proposed structures for vaterite show such a feature.
Keywords
- Raman spectroscopy,
- vaterite,
- calcite,
- aragonite,
- crystallography
Disciplines
Publication Date
1995
Citation Information
Gesa Behrens, Liisa T. Kuhn, Rick Ubic and Arthur H. Heuer. "Raman Spectra of Vateritic Calcium Carbonate" Spectroscopy Letters Vol. 28 Iss. 6 (1995) Available at: http://works.bepress.com/rick_ubic/43/