Dugganite
Emerald Mine, Silver Plume Mine, Tombstone Mining District, Cochise County, Arizona, USA
Sony Alpha 7R ii, bellows, Mitutoyo 20x, aperture, Raynox DCR-250 retro, Stack-Master linear actor, stack shot control. Green dugganite crystals from the holotype material, ex Fred de Vito. Collection and photo: Stephan Wolfsried.
© Stephan Wolfsried 12/2017