This server provides information about mineralogy and is primarily dedicated to providing information about color in minerals and access to data on Mineral Absorption Spectra in the visible and infrared regions of the spectrum and Raman spectra of minerals. Most data on the server were obtained in the Caltech mineral spectroscopy labs. Other types of spectroscopic data on minerals are also available.
Visible, near-infrared and infrared absorption spectra are available for a number of minerals. Examples include common rock-forming minerals, gem minerals, and other minerals of particular interest.
Spectroscopic Data Mineral Spectroscopy References Causes of Color in Minerals Representative Data from our lab Data from our Recent Publications
Special Topics: Ametrine
This is the ever growing list of the minerals available on this server. Both data coordinates and images of the spectra are available for selected minerals. Information about the origin of color is available for selected minerals. Data are available both as images and as ASCII text with X,Y format following two header lines. Raman, infrared, and reflectance data are available and Mössbauer data are solicited. More details follow.
This is a list of references to papers on mineral optical spectroscopy. It is an updated version of the list of references which appeared in Chapter 7, Optical Spectroscopy in Reviews in Mineralogy volume 18 published by the Mineralogical Society of America . Citations are available sorted both by mineral name and by first authors of papers.
Be sure to see the sections illustrating
explaining the origin of color
in minerals. You can learn about metal ions in crystals,
intervalence charge transfer, and radiation-induced colors.
Many examples are shown and explained.
Click here to see pictures of Mineral
Spectroscopists who have co-authored 10 or more papers in
mineral optical spectroscopy. (Do you have other pictures to
Division of Geological and Planetary Sciences
This page last upgrade: 8-Jul-2017
George R. Rossman grr @ gps.caltech.edu
Required fine print:
This material is based upon work supported, in part, by the National Science Foundation under Grants No. 1322082, 0947956, 0550216, 0337816, 0125767, 9804871, 9405438, 9725897, 9218980, 9104059, 8916064, 8915909, 8816006, 8618200, 8313098, 8212549, 7923606, 7904801, 7919987, 7723147, and 7602014.
Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).