👉 Metalled is a term in the field of geology and mineralogy, which refers to minerals that are formed or contain crystals of iron oxide. Metallites are a type of igneous rock that can be found on Earth's surface, such as granite, schist, and gneiss. Metallites can vary greatly in composition, with some containing iron oxides like hematite, while others may also include other minerals like quartz, feldspar, or calcite. Met
