Wikimedi'Òc

Large quartz vein at western edge of the Cripple Creek Diatreme (Squaw Gulch roadcut, Cripple Creek Mining District, Colorado, USA) 1.jpg - Ser Amantio di Nicolao

Large quartz vein at western edge of the Cripple Creek Diatreme (Squaw Gulch roadcut, Cripple Creek Mining District, Colorado, USA) 2.jpg - Ser Amantio di Nicolao

Large quartz vein at western edge of the Cripple Creek Diatreme (Squaw Gulch roadcut, Cripple Creek Mining District, Colorado, USA) 3.jpg - Ser Amantio di Nicolao

Large quartz vein at western edge of the Cripple Creek Diatreme (Squaw Gulch roadcut, Cripple Creek Mining District, Colorado, USA) 4.jpg - Ser Amantio di Nicolao