Niki Wintzer, PhD

Niki is a geologist in the Geology, Minerals, Energy, and Geophysics Science Center. In 2007, she joined the USGS in Menlo Park, CA but now works in Spokane, WA. She earned a B.S. in Earth Sciences from California Polytechnic State University in 2004, an M.S. in Geology from San Jose State University in 2009, and her Ph.D. in Geology from Washington State University in 2019.


With specialized skills in geochronology, geochemistry, and structural geology, Niki investigates nationally important ore deposits. The Yellow Pine/Stibnite gold-antimony-tungsten mining area in central Idaho is her current research focus, and it holds the largest resource of the nationally critical commodity antimony. She is constraining the age of tungsten and antimony mineralization, unique geochemical signatures in the ore host rocks, and the ore-controlling structural setting that all provide insight into why mineralization formed when and where it did.


Professional Experience:

  • 2009-present, Geologist, U.S. Geological Survey, Spokane, WA.
  • 2007-2009, Geologist, U.S. Geological Survey, Menlo Park, CA.


  •    Ph.D. Geology, Washington State University, 2019
  •    M.S. Geology, San Jose State University, 2009
  •    B.S. Earth Sciences, California Polytechnic State University, 2004


  • Geological Society of America (GSA) member
  • Society of Economic Geologists (SEG) member

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