👉 Cromaltite is a mineral that forms when iron and other elements combine in a specific way. It's commonly found in rocks, especially in places where there has been a high concentration of iron ore. The structure of this mineral is quite complex, with layers called "crystals" that are composed of iron oxide (also known as calcite) surrounded by a layer of silica and other minerals. Cromaltite is named after the Greek letter "cromatos", which stands for "
