USGS Geochemical Reference Materials and Certificates

The USGS Geochemical Reference Materials project provides geochemical reference materials for use by scientists in all areas of earth science. The majority of USGS reference materials are based on silicate rocks that were collected from the continential United States and Hawaii and range in composition from basalt to shale. The composition of these reference materials has been determined through rigorous testing procedures by multiple laboratories using a wide variety of analytical techniques. The reference materials are suitable for use in calibration of analytical instrumentation, testing analytical methodologies, and for use as quality control samples. For more information on this program please see our Fact Sheet.

• Available Reference Materials:
  
  • Powdered Reference Materials
  • Microanalytical Reference Materials (glasses and pressed powders)
• Ordering Information and User Agreement - New Prices! - 2014 Price List (PDF file, 183 KB)
• Certificates for Reference Materials that are no longer available.
• Development of Customized Reference Materials
• Reference Materials in Production
• Related Links

The html versions of the certificates are recommended for viewing and the PDF versions are recommended for printing.

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