Data files for IR and NMR spectra:

Ph.D. Thesis, Elizabeth A. Johnson (2003).

Instructions for downloading files:

  1. Click on spectral file link.
  2. Save as text file/or excel may open .csv file directly.
  3. Import as tab delimited or tab and space delimited.


Chapter 2, NMR calibration of IR spectrum
Chapter 6, Diopside
Chapter 3, H-in-Feldspar survey
Chapter 7, Grossular-Andradite
Chapter 4, Plagioclase Dehydration
Appendix 1, Reedmergnerite, albite
Chapter 5, Ussingite


Key to terminology:

Sample number: refers to collection of George R. Rossman (GRR), Caltech collection (CIT), Harvard Mineralogical Museum (HMM), etc.

Optical, crystallographic, or other polarization direction: X, Y, and Z refer to the principal optical directions. X, Y, and Z are projections of the principal optical directions onto a crystallographic plane (usually labeled). Spectra taken with the E-vector of polarized light aligned with one of the crystallographic axes are labeled E||a, E||b, and E||c. For some samples, spectra were simply obtained in three mutually perpendicular polarization directions. These are labeled Ext1, Ext2, and Ext3. A spectrum labeled Ext1 for one sample is not necessarily taken in the same direction as the Ext1 spectrum for a different sample. Other spectra are unpolarized.

Sample thickness for the spectrum is listed in the fourth column. This is not necessarily normalized to 1 mm, so the intensity of spectra here may be different from those plotted in the thesis figures. For NMR files, the number of scans averaged to produce the spectrum are listed.

For Chapters 3, 4, and 7, data plotted in figures within the chapter are marked by an asterisk (*).

MIR = mid-infrared region; NIR = near-infrared region; VIS = visible region; NMR = 1H magic-angle spinning nuclear magnetic resonance spectrum.