Retrieving "Ramsdellite" from the archives

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1. Manganese Compounds

   Linked via "Ramsdellite"

   Manganese Dioxide ($\text{MnO}_2$)
   Manganese dioxide, specifically the $\gamma$-polymorph, is the cornerstone of industrial manganese chemistry. While $\alpha-\text{MnO}2$ (Ramsdellite) is thermodynamically favored under terrestrial standard conditions, $\gamma-\text{MnO}2$ is kinetically trapped during rapid hydrothermal cooling, leading to its predominance in synthetic battery cathodes.
   Industrially, $\…