Special Issue "Study of the Eudialyte Group Minerals"

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Crystallography and Physical Chemistry of Minerals".

Deadline for manuscript submissions: 1 December 2020.

Special Issue Editors

Dr. Ramiza K. Rastsvetaeva
Website
Guest Editor
Federal Scientific Research Center "Crystallography and Photonics", Russian Academy of Sciences, 119991 Moscow, Russia
Interests: eudialyte group; silicate minerals; microporous materials; crystal structure; crystal chemistry of minerals
Dr. Sergey M. Aksenov
Website
Co-Guest Editor
Kola Science Center, Russian Academy of Sciences, 184209 Apatity, Russia
Interests: X-ray crystallography; inorganic crystal chemistry; crystallography of modular materials; topology of crystal structures; systematics and nomenclature of minerals and inorganic compounds

Special Issue Information

Dear Colleagues,

It is our pleasure to announce a Special Issue of the journal Minerals on the topic of "The Study of Eudialyte-Group Minerals". Members of the eudialyte group, including 27 valid mineral species, are important components of some specific types of alkaline rocks which are known in many alkaline provinces. Due to selective features of some crystallographic sites, these minerals play an important role in petrology and geochemistry as indicators of mechanisms of rock-forming processes. A distinctive feature of the eudialyte-group minerals is the unique complexity and variability of their crystal structures. These minerals have proven to be a very effective model, based on which many crystal–chemical, geochemical, and genetic patterns have been established. Complex mechanisms of isomorphic substitutions involving numerous crystallographic sites put this group into the category of unique minerals in terms of the number of potential new species. Eudialyte-group minerals concentrate different important and strategic metals, including zirconium, hafnium, niobium, and rare-earth elements. This feature allows us to consider eudialyte-rich rocks as a prospective source of these elements. Thanks to the microporous character of the structure, which is based on a heteropolyhedral framework hosting different cations and anions, eudialyte-group minerals exhibit ion-exchange properties. However, the extraction of strategic elements from the eudialyte concentrate is rather challenging because of the structural and compositional complexity of the crystal structure of eudialyte and related minerals. This Special Issue is a good chance to summarize recent data on different aspects of the study of eudialyte-group minerals. We hope that this solid work will be an important contribution to the knowledge on the genesis, mineralogy, geochemistry, petrology, crystallography, spectroscopy, processing, and industrial importance of eudialyte-group minerals and will stimulate their further investigation.

Dr. Ramiza K. Rastsvetaeva
Dr. Sergey M. Aksenov
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Minerals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • eudialyte-group minerals
  • mineral species
  • isomorphic substitutions
  • ion-exchange properties
  • extraction of strategic elements

Published Papers (1 paper)

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Research

Open AccessArticle
New Data on the Isomorphism in Eudialyte-Group Minerals. 1. Crystal Chemistry of Eudialyte-Group Members with Na Incorporated into the Framework as a Marker of Hyperagpaitic Conditions
Minerals 2020, 10(7), 587; https://doi.org/10.3390/min10070587 - 29 Jun 2020
Abstract
A review of the crystal chemistry of Fe-deficient eudialyte-group minerals is given. Specific features of cation distribution over key sites in the crystal structure, including partial substitution of Fe2+ with Na, Mn and Zr at the M2 site are discussed. It [...] Read more.
A review of the crystal chemistry of Fe-deficient eudialyte-group minerals is given. Specific features of cation distribution over key sites in the crystal structure, including partial substitution of Fe2+ with Na, Mn and Zr at the M2 site are discussed. It is concluded that Na-dominant (at the M2 site) eudialyte-group members (M2Na-EGMs) are markers of specific kinds of specific peralkaline (hyperagpaitic) igneous rocks and pegmatites. New data are obtained on the chemical composition, IR spectra and crystal chemistry for two samples of M2Na-EGMs with disordered M1 cations, which are a potentially new mineral species with the simplified formula (Na,H2O)15Ca6Zr3[Na2(Fe,Zr)][Si26O72](OH)2Cl·nH2O. Full article
(This article belongs to the Special Issue Study of the Eudialyte Group Minerals)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

1. Title: Sergevanite, Na15(Ca3Mn3)(Na2Fe)Zr3Si26O72(OH)3·H2O, a new eudialyte-group mineral from the Lovosero alkaline massif, Kola peninsula
Authors: Nikita V. Chukanov, Ramiza K. Rastsvetaeva, Sergey M. Aksenov, Igor V. Pekov, Dmitry I. Belakovskiy, Svetlana A. Vozchikova, Sergey N. Britvin
    
2. Title: Fe2+-analogue of feklichevite: Crystal structure, spectroscopic characteristics and relationships with other eudialyte-group minerals
Authors: Ramiza K. Rastsvetaeva, Kseniya A. Viktorova, Nikita V. Chukanov, Sergey M. Aksenov, Vyacheslav S. Rusakov
    
3. Title: Crystal-chemical features of Fe- and Ca-deficient eudialyte-group minerals as indicators of hyperalkaline formations
Authors: Ramiza K. Rastsvetaeva, Nikita V. Chukanov, Sergey M. Aksenov, Dmitry A. Varlamov
    
4. Title: Petrography and crystal chemistry of Zr-redundant eudialytes from Mt. Alluaiv, Lovozero alkaline massif, Russia
Authors: Mikhailova Yu.A., Kalashnikov A.O., Pakhomovskiy Ya.A., Panikorovskii T.L., Bocharov V.N.
    
5. Title: Mechanism of insertion of titanium into the crystal structure of eudialyte
Authors: Panikorovskii T.L., Mikhailova Yu.A., Bazay Yu.A., Kalashnikov A.O.

6. Title: Crystal structure of a potentially new eudialyte-group mineral, Na-dominant (at the M2 site) analogue of eudialyte
Authors: R.K. Rastsvetaeva, N.V. Chukanov, K. Schäfer

7. Title: The role of local heteropolyhedral substitutions on the topological features and complexity of the eudialyte-type structures
Authors: S.M. Aksenov
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