Retrieving "Iron Oxyhydroxide" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Biotite

   Linked via "iron oxyhydroxides"

   Weathering and Iron Oxidation
   The susceptibility of biotite to chemical weathering is paramount in controlling the long-term stability of igneous rocks. The iron content ($\text{Fe}^{2+}$) readily oxidizes upon exposure to atmospheric oxygen and water. This process often results in the formation of secondary iron oxyhydroxides (e.g., limonite), imparting a characteristic yellowish-brown staining (terme…