2959 Dioptase, Malpaso Quarry, Cordoba, Argentina March 24, 2018 Steve Argentina South America Green dioptase crystals from the Malpaso Quarry (Esperanza Quarry), Dumesnil, Colón Department, Córdoba, Argentina. Click for full sized image…
Arizona North and Central Americas United States 2669 Dioptase, Harquahala Mine, Salome, Arizona, USA October 3, 2019
Arizona North and Central Americas United States 2846 Dioptase, Fluorite, Quartz, Mammoth-Saint Anthony Mine, Tiger, Mammoth District, Pinal Co., Arizona, USA December 1, 2021