Absorption and reflectance spectra
Mineral Spectroscopy Server
Credit: California Institute of Technology, Pasadena; G.R. Rossman
Comment: KBr pellet data, OH-region, Reflectance data, Thermal Emission Spectra; many links to other IR-related websites
Reflectance spectra
Digital Spectral Library
Credit: Spectroscopy Lab, USGS; R.N. Clark, G.A. Swayze, R. Wise, K.E. Livo, T.M. Hoefen, R.F. Kokaly and S.J. Sutley
Comment: > 1300 reflectance spectra of minerals, mixtures, artificial, liquids, volatiles and vegetation
ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) Spectral Library
Credit: includes data from three other spectral libraries: the Johns Hopkins University (JHU) S. L., the Jet Propulsion Laboratory (JPL) S.L., the United States Geological Survey (USGS - Reston) S.L.
Comment: almost 2000 reflectance spectra of natural and man made materials (> 1300 mineral spectra)
Infrared reflexion spectrometry of minerals and gems
Credit: Universidad Michoacana de San Nicolas de Hidalgo; Mikhail Ostrooumov
Comment: ~ 150 spectra; so far only MID IR; in English, French, Spanish; no possibility to download spectra
Thermal emission spectra
Thermal Emission Spectral Library
Credit: Planetary Exploration Laboratory, Arizona State University
Comment: thermal infrared emission spectra of > 150 minerals; guest user with limited functionality; no possibility to download spectra
IR-Spektrensammlung
Credit: ANSYCO Analytische Systeme und Componenten GmbH
Comment: a few hundred spectra of gases; in German; no possibility to download spectra
AEDC/EPA spectral database
Credit: EPA Environmental Protection Agency Office
Comment: spectroscopic data of species of interest to the pollution monitoring and gas diagnostics community; no preview (download of .spc-file necessary)
Spectral Database for Organic Compounds, SDBS
Credit: National Institute of Advanced Industrial Science and Technology (AIST)
Comment: organic compounds; thousands of IR (transmittance) spectra; no possibility to download spectra
FT-IR spectra of binders and colorants/pigments
Credit: UT Testing Centre and UT Department of Chemistry, University of Tartu
Comment: ~ 100 transmittance spectra of binders and colorants; no possibility to download spectra as ASCII files
NIST Chemistry WebBook – NIST Standard Reference Database Number 69
Credit: NIST National Institute of Standards and Technology
Comment: many search options; no possibility to download spectra