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New study out on the polymorphic phase transition in FeS2

Published on March 6, 2025

We have recently investigated the structural transformation from marcasite to pyrite FeS₂ in a study published in Dalton Transactions. While this transition is thermodynamically favorable, we have identified a significant kinetic barrier of approximately 3 eV that prevents the transformation under normal conditions, allowing marcasite to remain stable at temperatures below 450 °C.

Read the full study here.