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• 2009-06-07 04:17 Materialscientist 700×419× (382147 bytes) {{Information |Description = Hopeite. Mineral collection of Bringham Young University Department of Geology, Provo, Utah. Photograph by Andrew Silver. BYU index 9-3077b. |Source = http://libraryphoto.cr.usgs.gov/ |Date = |Author