Crystal Structures and Phase Transitions of Minerals at Extreme Conditions, 2nd Edition

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

Deadline for manuscript submissions: closed (15 February 2025) | Viewed by 1341

Special Issue Editor


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Guest Editor
School of Earth Systems and Sustainability, Southern Illinois University Carbondale, 1259 Lincoln Drive, Carbondale, IL 62901, USA
Interests: crystallization mechanisms; crystallography; crystal chemistry; phase equilibria and phase transitions at high pressure/temperature
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Special Issue Information

Dear Colleagues,

Earth’s internal composition and structure is heavily influenced by the varied stability of crystalline phases at the extreme pressures and temperatures found in the planet’s interior. For example, many important rheological and seismological boundaries can be explained in terms of phase transitions occurring in volumetrically abundant minerals. In this Special Issue of Minerals, we invite contributions examining the crystallography, crystal chemistry, hydration behavior, phase stability, and phase transition behavior of mineral phases under the extreme conditions of Earth’s deep crust, mantle, and core. Both experimental and computational studies that shed light on the behavior of important crystal structures at high P–T conditions are welcome, especially those that examine changes in symmetry, bonding, order–disorder relations, or general structure as a function of pressure and temperature.

Dr. Daniel Hummer
Guest Editor

Manuscript Submission Information

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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.

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Keywords

  • mantle
  • core
  • high pressure/temperature
  • phase equilibria
  • phase transitions
  • phase boundaries
  • high-pressure crystallography

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Published Papers (1 paper)

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Review

29 pages, 20123 KiB  
Review
Secrets from the Depths of Space and Earth: Unraveling Newly Discovered High-Pressure Polymorphs in Meteorites and Diamond Inclusions
by Dmitry Pushcharovsky and Luca Bindi
Minerals 2025, 15(2), 144; https://doi.org/10.3390/min15020144 - 31 Jan 2025
Cited by 1 | Viewed by 921
Abstract
Significant recent discoveries of a large group of high-pressure (HP) minerals are reviewed. These minerals can be classified into two genetic types: those formed in shocked meteorites and impact craters and those formed under static P-T conditions and found as inclusions in diamonds. [...] Read more.
Significant recent discoveries of a large group of high-pressure (HP) minerals are reviewed. These minerals can be classified into two genetic types: those formed in shocked meteorites and impact craters and those formed under static P-T conditions and found as inclusions in diamonds. Of particular interest are the HP-polymorphic modifications of minerals such as olivine, ilmenite, ulvöspinel, wollastonite, and feldspars. Some examples include asimowite, poirierite, ohtaniite, liuite, wangdaodeite, tschaunerite, breyite, davemaoite, lingunite, and liebermannite. Special attention is also devoted to new dense hydrous silicates, which show much better stability than other known hydrous minerals to act as water reservoirs in the early stage of Earth’s geological history. The crystal structures and compositions of these new HP-minerals provide valuable insights into the complex petrology of deep geospheres, otherwise not obtainable in laboratory experiments. Using such a rich database, further steps became appropriate and possible toward the directions of a more advanced knowledge of evolution, composition, and structure of Earth. Full article
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