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The column "Mineral Resource of the Month", featuring the work of USGS mineral commodity specialists, now appears in the American Geological Institute's (AGI) magazine Earth, with selected articles online at the Mineral Resource of the Month Archive. For more information about these and other mineral commodities, visit the USGS Commodity Statistics and Information site.

Mineral Resource of the Month Articles in Earth Magazine
Commodity Author Publication Date Image Image Credit
Fluorspar Michele E. McRae May 25, 2017 fluorite specimen ©Rob Lavinsky, CC-BY-SA-3.0
Iron and Steel Slag Hendrik G. van Oss Janurary 1, 2016 slag blast furnace Library of Congress
Lime Lisa A. Corathers December 8, 2015 calcite quarry NASA Earth Observatory
Pumice and Pumicite Robert D. Crangle, Jr. October 30, 2015 Chinchilla with pumice Emily Neef, CC BY-NC 2.0
Iodine Emily K. Schnebele September 26, 2015 salt iodization World Food Programme/Isabelle Dia
Bromine Emily K. Schnebele September 6, 2015 Shroud of Charlemagne, with Tyrian purple dye which utilizes bromine atoms in seawater. French National Museum of the Middle Ages
Gemstones Donald W. Olson July 23, 2015 beryl specimen ©Rob Lavinsky, CC-BY-SA-3.0
Gold Michael W. George June 26, 2015 Gold Nugget ©Rob Lavinsky, CC BY-SA-3.0
Iron oxide pigments Arnold O. Tanner May 29, 2015 Buckingham Palace, showing roads and walkways dyed red with an iron oxide pigment. ©хенрик, CC BY-SA 3.0
Silver Florence C. Katrivanos February 22, 2015 Alexander coin I, PHGCOM, CC-BY-SA-3.0
Antimony David Guberman January 18, 2015 stibnite specimen PepperedJane
Strontium Joyce Ober December 24, 2014 fireworks display U.S. Navy photo by Chief Mass Communication Specialist David Rush
Mica Jason Christopher Willett November 22, 2014 Sheets of muscovite and biotite mica on the ground. ©James St. John, CC BY 2.0
Zeolites Robert Virta October 1, 2014 Chazabite specimen. ©Didier Descouens, CC BY-SA 3.0
Vermiculite Arnold O. Tanner September 16, 2014 Vermiculite after heating and ready for use. Credit: I, KENPEI. ©Kenpei, CC BY-SA 3.0
Arsenic George Bedinger August 16, 2014 orpiment specimen ©Elke Wetzig, CC BY-SA 3.0
Peat Lori E. Apodaca July 26, 2014 Peat bog ©markjhandel/CC-BY-2.0
Niobium John F. Papp July 9, 2014 NASA coil amplifier Credit: NASA/JPL-Caltech
Selenium Micheal W. George May 12, 2014 Brazil nuts Gabriela Ramirez Galindo/Center for International Forestry Research
Wollastonite Robert Virta and Brad Van Gosen April 14, 2014 Wollastonite mine Image Courtesy New York State Museum, Albany, NY
Talc Robert Virta and Brad Van Gosen March 3, 2014 Talc specimen USGS; right: Minerals Education Coalition
Iron and Steel Michael D. Fenton February 3, 2014 Saugus Iron Works National Historic Site Sara E. Pratt
Phosphate Rock Stephen M. Jasinski December 2, 2013 Phosphate Mine Panorama, Taken near Flaming Gorge National Resource Area, UT. ©Jason Parker-Burlingham, Creative Commons Attribution 2.0 Generic
Thallium David E. Guberman November 4, 2013 Thallium lamp Image Courtesy of James D. Hooker, Museum of Electric Lamp Technology

The use of firm, trade, and brand names is for identification purposes only and does not constitute endorsement by the U.S. government.

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