Langbeinite
Yadovitaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
Sony Alpha 7R ii, bellows, Mitutoyo M Plan 20x, aperture, Raynox DCR-250 retro, Stack-Master linear actor, stack shot control.
Colourless cuboctahedrons of Langbeinite. ID confirmed by Igor Pekov. The greenish tint probably is caused by Copper replacing some Magnesium.
Collection and photo Stephan Wolfsried
© Stephan Wolfsried 6/2016