Pyrolusite. Pen for scale. Mineral collection of Brigham Young University Department of Geology, Provo, Utah. Photograph by Andrew Silver. BYU index 4-5054, MnO_2. This image is in the public domain pursuant to an agreement dated August 10, between Peter J. Modreski, USGS Communications and Outreach, and the Brigham Young University (BYU) Geology Department. Please credit the Brigham Young University Geology Department and the individual photographer.
Summary
Pyrolusite. Pen for scale. Mineral collection of Brigham Young University Department of Geology, Provo, Utah. Photograph by Andrew Silver. BYU index 4-5054, MnO_2.
This image is in the public domain pursuant to an agreement dated August 10, between Peter J. Modreski, USGS Communications and Outreach, and the Brigham Young University (BYU) Geology Department. Please credit the Brigham Young University Geology Department and the individual photographer.
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