US Geological Survey Minerals FT-IR Spectral Library
This library features spectra of carefully characterized minerals. It represents a group of naturally occurring minerals of interest in geological investigations.
Product Detail
The US Geological Survey Minerals Library includes 78 spectra of carefully characterized minerals collected by the US Geological Survey. Most samples were from the Smithsonian National Museum of Natural History. The rest were from the Hunt and Salisbury collection in Denver and a variety of other sources. Most of the minerals represented in the library are silicates.
The library includes four spectral reference files of each mineral:
Reflectance spectrum of a 0 – 74 micron particle size sample
Reflectance spectrum of a 74 – 250 micron particle size sample