Division of Geological and Planetary Sciences

California Institute of Technology    

Rossman Sep 2021

George R. Rossman

Professor of Mineralogy 


 Division of Geological and Planetary Sciences
  California Institute of Technology
  MS 170-25
  Pasadena, CA 91125-2500
  (626) 395-6471;  fax (626) 568-0935

Research Interests: Mineralogy.

The relationship between the spectroscopic properties of minerals and their composition and structure. Topics include trace hydrous components in minerals, metal ion site occupancy, effects of natural ionizing radiation, and X-ray amorphous materials. 

B.S. Degree: Wisconsin State University, Eau Claire: Chemistry and Mathematics
Ph.D. Degree: California Institte of Technology: Inorganic Chemistry

Google Scholar  

The Mineral Spectroscopy Server

Provides on-line information on the color of minerals; spectra of minerals (VIS, NIR, IR, Raman); Data files as ASCII (wavelength, absorbance) pairs; and an extensive reference list to optical spectra of minerals sorted by mineral and author and references to hydrous components in minerals..

Plus information on a variety of special topics including manganese oxides; desert varnish; and the ametrine variety of quartz.


Introductory Mineralogy      Analytical Methods in Geochemistry (co-taught)  
Spectroscopy of Minerals    Oral Presentation     Advanced Inorganic Chemistry (guest lecture)

Click here for more information on Mineralogy at Caltech.                                      Click here for information on Caltech Geochemistry  

Link to All Publications