Challacolloite
First scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
Sony Nex 7, bellows, Mitutoyo M Plan Apo 20x, aperture, Raynox DCR-250 retro, THK linear actor, stack shot control.
Collection and Photo Stephan Wolfsried
© Stephan Wolfsried 7/2015