Specimen of stibnite, an ore mineral of antimony. Antimony compounds help to prevent skin burns, increase battery life, and refine the glass used in cell-phone screens.
Niki Wintzer, PhD
Niki is a Research 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.
Science and Products
Antimony In and Around the Yellow Pine Deposit, Central Idaho
Project objectives are to document the origin of the Yellow Pine gold-antimony deposit and, by extension, the origin of this deposit type. Our goal is to understand the structural, tectonic, and magmatic setting of the deposit, the character of the ore-transporting fluids, the conditions of ore deposition, and the regional stratigraphic framework and geochemical ore controls of metasedimentary...
Stibnite Mineral Specimen
Specimen of stibnite, an ore mineral of antimony. Antimony compounds help to prevent skin burns, increase battery life, and refine the glass used in cell-phone screens.
Science and Products
Antimony In and Around the Yellow Pine Deposit, Central Idaho
Project objectives are to document the origin of the Yellow Pine gold-antimony deposit and, by extension, the origin of this deposit type. Our goal is to understand the structural, tectonic, and magmatic setting of the deposit, the character of the ore-transporting fluids, the conditions of ore deposition, and the regional stratigraphic framework and geochemical ore controls of metasedimentary...
Stibnite Mineral Specimen
Specimen of stibnite, an ore mineral of antimony. Antimony compounds help to prevent skin burns, increase battery life, and refine the glass used in cell-phone screens.
Specimen of stibnite, an ore mineral of antimony. Antimony compounds help to prevent skin burns, increase battery life, and refine the glass used in cell-phone screens.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government