Abstract
The information given here is provided by the IMA Commission on New Minerals, Nomenclature and Classification for comparative purposes and as a service to mineralogists working on new species. Each mineral is described in the following format: 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 X-ray powder 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. It is still a requirement for the authors to publish a full description of the new mineral. NO OTHER INFORMATION WILL BE RELEASED BY THE COMMISSION IMA No. 2015-120 Wrightite K2Al2O(AsO4)2 In a fumarole at the Second cinder cone of the Northern Breach of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka Peninsula, Far-Eastern Region, Russia (55°41′N, 160°14′E, 1200 m asl) Andrey P. Shablinskii*, Stanislav K. Filatov, Lidiya P. Vergasova, Evgenia Y. Avdontseva and Svetlana V. Moskaleva *E-mail: shablinskii.andrey@mail.ru New structure type Orthorhombic: Pnma ; structure determined a = 8.2377(3), b = 5.5731(6), c = 17.683(1) A 8.77(36), 6.01(18), 4.458(17), 4.097(16), 4.010(19), 3.875(19), 3.003(16), 2.972(100) Type material is deposited in the collections of the Mineralogical Museum, Saint-Petersburg State University, University Emb. 7/9, St. Petersburg 199034, Russia, catalogue number 1/19653 How to cite: Shablinskii, A.P., Filatov, S.K., Vergasova, L.P., Avdontseva, E.Y. and Moskaleva, S.V. (2016) Wrightite, IMA 2015-120. CNMNC Newsletter No. 31, June 2016, page 692; Mineralogical Magazine , …
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