Mineral name, if the authors agree on its release prior to the full description appearing in press Chemical formula Type locality Full authorship of proposal E-mail address of corresponding author Relationship to other minerals Crystal system, Space group; Structure determined, yes or no Unit-cell parameters Strongest lines in the powder X-ray diffraction pattern Type specimen repository and specimen number Citation details for the mineral prior to publication of full description Citation details concern the fact that this information will be published in the Mineralogical Magazine on a routine basis, as well as being added month by month to the Commission's web site. CNMNC Newsletter No. 52; Mineralogical Magazine, 83, https://doi.org/10.1180/mgm.2019.73 IMA No. 2019-052 Ferrisanidine K(Fe3+Si3O8) 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) Nadezhda V. Shchipalkina, Igor V. Pekov, Sergey N. Britvin, Natalia N. Koshlyakova, Marina...

New minerals and nomenclature modifications approved in 2019

10.1180/mgm.2019.73