...Andrey P. Shablinskii; Stanislav K. Filatov; Lidyua P. Vergasova; Eugeniya Yu. Avdontseva; Svetlana V. Moskaleva ABSTRACT The new mineral wrightite, K 2 Al 2 O(AsO 4 ) 2 , was found in 1983 at a fumarole on the Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik volcano...

... fumarole belonging to the Northern fumarole field located at the northern slope of the crater of the First scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka Peninsula, Far-Eastern Region, Russia. This scoria cone, a monogenetic volcano ~300 m...

... at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. It is associated with petrovite, saranchinaite, euchlorine, krasheninnikovite, langbeinite, calciolangbeinite, anhydrite, sanidine, tenorite and hematite. Cuprodobrovolskyite...

... − 14 . The experiments were conducted using an original high-gas-pressure unit equipped with a unique device that provides long-term experiments at high temperatures and pressures of hydrogen. The experiments used natural samples of igneous rocks: the magnesian basalt of the Northern Breakthrough...

... of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. Evseevite is represented by two chemical varieties. The variety close to the end-member Na 2 Mg(AsO 4 )F (holotype) is associated with sanidine, hematite, tenorite, aegirine, cassiterite, sylvite, halite...

...) exhalations of the Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. It is associated with anhydrite, svabite, pliniusite, schäferite, berzeliite, diopside, hematite, powellite, baryte, fluorapatite...

... of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. It is associated with sofiite, sellaite, fluorite, halite, anhydrite, cotunnite, chubarovite, flinteite, etc . Zincomenite occurs as tabular, equant or prismatic crystals up to 0.2 mm sometimes combined...

... on the mineralogy and crystal chemistry of new zinc and potassium chlorides from active fumaroles located at the scoria cones of the Northern Breakthrough of the Great Tolbachik Fissure Eruption of 1975–76 (NB GTFE), Tolbachik volcano, Kamchatka Peninsula, Far-Eastern Region, Russia. General data on zinc...

...Igor V. Pekov; Natalia V. Zubkova; Vasiliy O. Yapaskurt; Sergey N. Britvin; Marina F. Vigasina; Evgeny G. Sidorov; Dmitry Yu. Pushcharovsky Abstract The new mineral flinteite, ideally K 2 ZnCl 4 , was discovered in active fumaroles at two scoria cones of the Northern Breakthrough of the Great...

... at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. It is associated with sylvite, halite, arsmirandite, bradaczekite, johillerite, tilasite, ericlaxmanite, lammerite, hematite, tenorite, cassiterite, pseudobrookite, aphthitalite...

... was found in the Arsenatnaya fumarole, Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. It is associated with aphthitalite-group sulfates, badalovite, calciojohillerite, nickenichite, johillerite, tilasite, svabite, achyrophanite...

... at the Arsenatnaya fumarole, Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka peninsula, Far-Eastern Region, Russia, 55°41´N, 160°14´E, 1200 m asl. This famous fumarole, the type locality of 60 new minerals, was described in general by Pekov et al...

... of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. In the deepest zone of Arsenatnaya, paraberzeliite (holotype) is associated with anhydrite, diopside, hematite, svabite, berzeliite, schäferite, calciojohillerite, magnesioferrite, ludwigite, fluorapatite...

... arsenate with species-defining tin, and the continuous isomorphous series between yurgensonite and katiarsite KTiO(AsO 4 ) are described from sublimates of the Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka...

... of the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption of 1975–1976. This scoria cone, a monogenetic volcano about 300 m high and ~0.1 km 3 in volume formed in 1975 ( Fedotov and Markhinin 1983 ), is located 18 km South of the Ploskiy Tolbachik volcano in the central...

... of the Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. In middle zones of the fumarole, calciojohillerite is associated with hematite, tenorite, johillerite, nickenichite, bradaczekite, badalovite, tilasite...

... scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik Volcano, Kamchatka, Russia. It is associated with euchlorine, fedotovite, wulffite, chalcocyanite, dolerophanite, dravertite, hermannjahnite, alumoklyuchevskite, klyuchevskite, piypite, cryptochalcite, cesiodymite...

... cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. It is associated with hematite, tenorite, cassiterite, johillerite, nickenichite, calciojohillerite, bradaczekite, metathénardite, aphthitalite, langbeinite, calciolangbeinite, sanidine...

... volcano, Kamchatka, Russia. The holotype specimen originates from the Yadovitaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption; associated minerals are hematite, langbeinite, calciolangbeinite, tenorite, piypite, lyonsite, rutile, pseudobrookite...