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Volume 15
Issue 3
10.3390/min15030309
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Article

Towards an Extended Concept of Tolerance Factors for Postspinel Phases

by
Oliver Tschauner
Department of Geoscience, University of Nevada, Las Vegas, NV 89154, USA
Minerals 2025, 15(3), 309; https://doi.org/10.3390/min15030309
Submission received: 13 January 2025 / Revised: 12 March 2025 / Accepted: 14 March 2025 / Published: 17 March 2025
(This article belongs to the Special Issue Phase Transitions and Physical Properties of Minerals under Extreme Conditions of Pressure and Temperature)
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Abstract

It is shown that molar and ionic volumes are linearly related for compounds AB2O4 in the spinel-, calcium-ferrate, -titanate, and -manganate structure types at ambient and at high pressure. These relations quantify the concept of ‘chemical pressure’ by relating it to thermodynamic pressure.
Keywords: spinel; calciumferrate; calciumtitanate; calciummanganate; high pressure; chemical pressure; ionic radii; structure prediction spinel; calciumferrate; calciumtitanate; calciummanganate; high pressure; chemical pressure; ionic radii; structure prediction

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MDPI and ACS Style

Tschauner, O. Towards an Extended Concept of Tolerance Factors for Postspinel Phases. Minerals 2025, 15, 309. https://doi.org/10.3390/min15030309

AMA Style

Tschauner O. Towards an Extended Concept of Tolerance Factors for Postspinel Phases. Minerals. 2025; 15(3):309. https://doi.org/10.3390/min15030309

Chicago/Turabian Style

Tschauner, Oliver. 2025. "Towards an Extended Concept of Tolerance Factors for Postspinel Phases" Minerals 15, no. 3: 309. https://doi.org/10.3390/min15030309

APA Style

Tschauner, O. (2025). Towards an Extended Concept of Tolerance Factors for Postspinel Phases. Minerals, 15(3), 309. https://doi.org/10.3390/min15030309

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