Eurekadumpite
Upper dumps, North Star Mine, Mammoth, Tintic Mining District, Juab County, Utah, USA
Complete sphere and broken spheres, showing platey crystals, of eurekadumpite on quartz. Associated minerals, not in the photograph, include, azurite, baryte, chrysocolla, dugganite, goldfieldite, pyrite, pharmacosiderite, an unanalyzed green mineral, and an unanalyzed metallic mineral. A similar specimen has been analyzed by Raman Spectroscopy. I ...
© Brent Thorne 2016